Skip to main content

Full text of "Edison Microfilm Reel 096"

See other formats


Association for 
Information and Image 






University Publications of America 
Frederick, Maryland 


Ruificrs, Tlic State Oniversity of 
New Jersey 

ndwardj. RIoustein 
T. Alexander Pond 
Tilden G, Edelstein 
John Gillis 

Ne\v Jersey Historieal Commission 
Bernard Rush 
Howard L Green 

National Park Sem'ce, Edison 
National Historic Site 
Roy W. Weaver 
Edward J. Pershey 
Smithsonian Institution 
Bernard Finn 
Arthur P. Molclla 


James Brittain, Georgia Institute of Technolog>’ 
Alfred D. Chandler, Jr., Harvard University 
Neil Harris, University of Chicago 
Thomas Parke Hughes, University of Pennsylvania 
Arthur Link, Princeton University 
Nathan Kcingold, Smithsonian Institution 
Robert E. Schofield, Iowa State Universit)' 


William C. Hittingcr (chairman), RCA Corporation 
Edward J. Bloustcin, Rutgers, The State University of N.J. 
Cces Bruyncs, North American Philips Cotpoiation 
Paul J. Christiansen, Charles Edison Fund 
Philip F. Dietz, Westinghousc Electric Corporation 
Roland W. Schmitt, General Electric Corporation 
Harold W. Sonn, Public Service Electric and Gas Company 
Morris Tanenbaum, AT&T 

Reese V. Jenkins 
Director and Editor 

Thomas E. Jefiirey 

Associate Director and Microfilm Editor 

Assistant Editors 
Paul B. Israel 
Robert A. Rosenberg 
Keith A. Nier 
Andrew Butrlca 

Assistant to the Director 
Helen Endlck 

Research Associates 
Douglas G. Tarr 
Mary Ann Hcllrigel 
DaWd W. Hutchings 

Grace KurkowskI 

Joseph P. Sullivan 
Karen Kozak 
GranvlUe MlUer 

Leonard DeGraaf 
Alan Stein 
Jacquelyn Miller 

Student Assistants 



Alfred P. Sloan Poundalion 
Charles Edison Fund 
Tile Hyde and Watson Foundation 
Geraldine R. Dodge Foundation 


National Science Foundation 
National Endowment for the Humanities 


Alabama Power Company 
Amerada Hess Corporation 

Atlantic Electric 

Mr. and Mrs. Stanley H. Katz 
Matsushita Electric Industrial Co., I 
McGraw-Eduson Company 
Middle South .Sen’ices, Inc. 

A Note on the Sources 

The pages which have been 
filmed are the best copies 
available. Every technical 
effort possible has been 
made to ensure legibility. 


Reel duplication of the whole or of 
any part of this film is prohibited. 
In lieu of transcripts, however, 
BEifarged photocopies of selected 
items contained on these reels 
may be made in order to facilitate 



REEL 96 



Two sets of documents comprise the Company Records Series for 1879-1886: 
(1) Primary Printed Collection; (2) Miscellaneous Company Records. 

(1) Primary Printed Collection . This collection contains printed documents 
that were issued by the various Edison companies and their competitors. Most of 
the items are advertising circulars, promotional brochures, and instruction 
manuals. A few other items such as annual reports, company bylaws, and 
incorporation papers are also included. All of the printed material issued by the 
Edison companies has been filmed except for duplicate copies of selected 

(2) Miscellaneous Company Records . This collection consists primarily of 
minute books, bulletins, canvass books, and other bound items relating to the 
various Edison companies. Included among the documents for 1879-1886 are 
extensive runs of the bulletins issued by the Edison Electric Light Company and the 
Edison Company for Isolated Lighting. 

The documents appear on the microfilm in the following order: 


A. Electric Light Companies - Domestic 

1. Edison Electric Light Company 

2. Edison Company for Isolated Lighting 

3. Edison Electric Illuminating Company of Brockton 

4. Edison Electric Illuminating Company of New York 

5. Western Edison Light Company 

B. Electric Light Companies - Foreign 

1. Edison Electric Light Company of Europe, Ltd. 

2. Compagnie Continentale Edison 

3. Societe Electrique Edison 

4. Societe Industrielle & Commerclale Edison 

5. Deutsche Edison Gesellschaft 

South America 

Compania Electrica de Edison 

C. Other Companies 

1. Edison Phonoplex System 

2. Edison Speaking Phonograph Company 

3. Edison Telephone Exchanges 

4. Gold and Stock Telegraph Company 

5. Menlo Park Manufacturing Company 

6. Sims-Edison Electric Torpedo Company 

7. United Telephone Company, Ltd. 


A. Electric Light Companies - Domestic 

1. Edison Electric Light Company [bulletins] 

2. Edison Company for Isolated Lighting [bulletins] 

3. Edison Electric Illuminating Company of Boston [finding aid to 
microfilmed collection of letterbooks and other records ] 

Thomas A, Edison Construction Department [instruction books, 
engineering plans, canvass books, other records ] 

B. Electric Light Companies - Foreign 

1. Edison Electric Light Company of Europe, Ltd. [scrapbook] 

2. Edison Electric Light Company, Ltd. [agreements, incorporation papers, 
lists of stockholders] 

C. Other Companies 

1. Edison Ore Milling Company, Ltd. [minute book] 

2. Edison Telephone Company of Europe, Ltd. [minute book, stock 
certificate book, stock transfer book] 

Edison Electric Light Company 

This folder contains printed material issued by the Edison Electric Light 
Company. This company was established in late 1878 to provide Edison with funds 
for his experiments in electric lighting in return for control of any patents he 
might receive in this field. The company licensed these patents to subsidiary 
companies like the Edison Machine Works and Edison Electric Illuminating 
Company of New York. These manufacturing and operating companies built and 
sold electrical equipment and constructed central stations, while paying royalties 
to the Edison Electric Light Company. 

The following items have been filmed: 

1. Annual Report (1885) 

2. Annual Report (1886) 

3. "The Edison Central Station System" [second edition] (1885) 

It. Central Station Catalog (1886) 

5. Testimonial from the Laramie Electric Light Company (1886) 

The following items have not been filmed: 

1. "The Edison Central Station System" [first edition] (1884?) 

2. "The Edison Electric Light Meter" [This pamphlet also appears as an 
enclosure to a letter from Francis 3ehl to Edison, May 11, 1882, D-82-039 
(Document File Series).] 

i-r- ■/£ CJ- cr- rs ^ _./^7--'''[ 

J.t<S'/0i.~f ' ' 



■ ■ 'i ■ _^_ ■ - ; 




















F, S, HASTINGS, Secretary attj Tr 

eleetricol api)lianoes, as well as in our general system of 
■ eleotrio lighting sineo that time. 

All of our various interests have associated ^vith them 
the best obtainable eleotrioal and meohanioal engineers, 
whose aim has been to simplify and cheapen our system of 
electric lighting, and as a result of this combined experience 

and effort, little remains to be desired in our system of cen¬ 
tral station and isolated lighting of to-day. 

During the year, 14 central station companies have been 
organized, viz.: Harrisburg, Pa., Des Moines, la., York, 
Pa., West Chester, Pa., Tamaqua, Pa., McKeesport, Pa., 
New Brunswick, N. J., Wilmington, Del., Boone, In., Johns¬ 
town, Pa., Now Bedford, Mass., Lqckport, N. Y., Little 
Palls, N. Y., Jackson, Mich. 

There are now 81 centrol station plants in operation or in 
course of installation in the United States, a complete list 
of, which is given below: 

The Edison Electric Illuminating Company, of New York, 
has been earning, for the six months ending October 1st 
(which are nil summer months), ht the rate of four and a 
half per cent, per annum, and on August 1st of the present 
year, paid a first quarterly dividend of 1% to its stock¬ 
holders, and another of like amount has been declared 
for the quarter ending November Ist. This company is 
now on a firm financial footing, reached under extraordinary 

As stated in our last annual report, this was the pioneer 
central station, and like most pioneer enterprises, it was sub¬ 
jected to peculiar difficulties at almost every point. The most 
serious of them was, of course, the great cost of installing 
the plant, which was so far in excess of the very imperfect 
estimates which could then be made, that the entire re¬ 
sources of the company were not only consumed, but it 
was loft with a heavy floating debt, to embarrass it 
in its operations. It is peculiarly gratifying, therefore, to 
bo able to state that the company has at last succeeded in 
discharging that debt, and is now paying moderate and 
regular dividends, with a certainty of increasing them as 
soon as the capacity of the station is enlarged. 

The foUoiving extract bom the letter of the Treasurer of 
the Dluminating Co. of New York, dated July 17, 1886, 
to its stockholders, announcing the quarterly divi¬ 
dend, the same being an extract from the minutes of the 
Company, ivill show its position to bo a strong one: 

“ The president then exhibited n detailed report of tho earnings nnd 
oxponsesof tho company, showing that tho not earnlngsfor tho sbe months 
ending Juno 80,1885, after paying all expenses of every descrintion, were 

“ Thopresldeut further stated that tho Company Is absolutely free from 
floating debt of any kind, tho debt Incurred In Increasing tho capacity of 
tho Pearl Street Station having boon ontlrely paid from earnings, nnd that 
after such payment, and after payment of all outstanding accounts for 
current supplies, &c., there remained from earnings, a sum of 910,680.40 
cash on hand appllcablo to dividends.” 

J8 every indication that the money ivill be raised early this 
winter, and with the assistance given by the trust stock, 
before hllnded to, your Trustees believe that success is as¬ 

The effect on the business of your Company of a second 
district in Now York can scarcely be overestimated. It 
would, witliout doubt, give an impetus to the establishing 
of similar districts in other large cities, and bo a wonderful 
stimulus to central station lighting throughout the country. 

One of the most satisfactory of your liconsoo companies 
is that of Harrisburir. Pa. This nlant has honn tbchiiHv 


Siuoa the above was publisbecUbe Havrisbavg Company 
bns inoreasod the oapaoity of its station to 5,600 lights. 
Tlioy state that they ore already earning over twenty-five per 
cent, on their capital stock, and expect to do still bettor. 

Tlie foregoing statement regarding Harrisburg is not in 
any way exceptional, and only fairly illustrates the great 
progi-oss that has been made during the past two years in 
perfecting our central station system, not only electrically 
but also commercially. In fact, it is from the commorcial 
standpoint that the greatest progress' has been made, for 
while the efficiency of our plant and method of installa¬ 
tion, os adopted to-day. are in every way vastly superior to 
our earlier work, these facts in thomsolvos would not be 
sufficient to enlist capital in this most important branch of 
our business. Tour Company has therefore striven earnestly 
to improve and develop the methods of central station instal¬ 
lation on a sound diviOend-payUig basis, and it can now be 
stated emphatically that all our installations of the past year 
or more have proven to bo profitable ontorprisos. The 
faults, olootrical and fiiinneial. which clinracterised our in- 
staUations of throe or four yearn ago, are now happily 
things of the past; and with two or three exceptions, oven 
these earlier installations have developed into prosperous 
and dividend-earning companies. In some cases, to bring 
this about, reasonable concessions have boon made by your 
Company, and the wisdom of such a course must be so 
apparent that your Board does not doom any extended 
comment or explanation necessary. These concessions 
have been largest towards our Ohio Companies, wliieh have 
been engaged in a hard struggle, forced upon them by the 
local gns companies, who evidently thought they could easily 
crush out electric lighting in their respective neighliorhoods. 
The result, however, has boon exactly opposite to such an¬ 
ticipations, and in one case, already, the gas company has 
succumbed, and the Electric Company now controls the 

The most important event of the past year has been the 
bringing of suits at law by your Company against the 
principal infringers of your lamp and other patents. 

The expediency of bringing such suits was suggested in 
the Inst annual report, and as subsequent events confirmed 
the foot that longer delay would be imprudent, steps were 
taken to'bring immediate actions against the infringers. 
IVo are now able to report that on May 2, bills of complaint 
were filed against the 'United States Electric Lighting Co., 
The Consolidated Electric Light Co., The Swan Incan¬ 
descent Electric Lighting Co., and a number of consumers of 
light furnished by companies infringing your patents. 

Great injury is being done yonr Company and all its 
licensees, by these infringers on Mr. Edison’s ideas and in¬ 
ventions, all of which we believe to be fully prolected by 
your patents, and your Board are resolved to vigorously 
prosecute and stamp out nil infringements, and to seek the 
aid of the Courts in maintaining the patents that belong ex- 
elusivel 3 ' to j’on by priority of invention and right. 

The services of Hon. IVm. M. Evnrts have been secured 
ns advisory counsel; and Messrs. J. 0. Tomlinson .and E. 
N. Dj’er have been engaged to carry on the active prepara¬ 
tion and prosecution of the suits. TVo believe that with 
those gentlemen your patent matters are in good hands, and 
wo have full- confidence that the suits will bo brought to 
a succcssfid issue as expeditiously ns possible. Our solici¬ 
tors ore serving notices of infringement from time to time on 
parties who are using or who may have begun the mniuifae- 
tiire of lamps infringing the Edison patents, warning them 
against their manufacture or use. These notices ore hav¬ 
ing a good effect. 

The many vexed questions arising out of past business 
transactions between your Company, Mr. Edison, and the 
various shops, ns well ns certain claims of Mr. Edison under 


his contract with this Company, wore inndo the subject of 
investigation by a special committee appointed by the Board 
and the result has been a settlement of those long ponding 
differences by mutual compromises in a manner satisfactory 
to all the porties concerned. Under Mr. Edison’s interpre¬ 
tation of his contract your Company would have been 
obliged to pay him the sum of $100,000 in cash; 
but against such payment various reasons and off¬ 
sets were urged and the matter was finally settled by 
allowing as due to Mr. Edison the sum of $60,765.70 with 
provision however that same shall not bo called for until 
such time as your Company shall roach a dividend-paying 
basis. It is but just to Mr. Edison that your Board 
should bear testimony to the spirit of fairness which ho 
displayed in the settlement of these vexatious questions 
which are now so happily adjusted. 

An agreement has been made with the Sprague Motor 
Company allowing them to use several of our brush and 
armature patents in connection with their motor, thereby 
increasing the efficiency of the latter. As consideration for 
this privilege, the Motor Company agree to pay a royalty 
of 3% on the value of all motors sold to your licensee com- 


original contraot with your Company. By the the transfer 
of this part of our business to them, your Company 
is relieved of the necessity and responsibility of 
carrying a department of trained experts and agents, 
while at the same time the central station system is being 
more energetically developed and extended. 

In the business of isolated lighting the Isolated Co. 
has met with very keen competition from the various 
infringers on our patents, who, finding they could not 
benefit themselves, have endeavored to do all the 
harm they could to the business of the Edison Comi)nny. 
In ]>ursniug this course, they have reduced prices to the 
bare cost of manufactm-o and installation; and while the 
Isolated Co. has never taken the initiative in this dis¬ 
astrous warfare, it has felt bound to meet the issue when 
forced upon it. Your Directors have many reasons for bo- 
lioving, that this policy has entailed heavy losses on our 
compotitoi-s, while the Isolated Co has not only miuntimied 
its prestige and secured the bulk of the business, but it 
has also succeeded in holding its own financially. Sooner 
or later, the policy of doing biisiuess at cost must tiro out 

sea haa ateadily iDoreaaed, and it ia not improbable that tbe 
coming year Tvill be tbe turning point in tbe biatory of tbe 
company, wben income will equal or exceed expenses and 
your Company be aelf-austaining. 

There ia already in our treaaury or duo, $062,379.26 of 
atook in licensee comuanies. made nn na fnllnws • 


of subaorlptions alionld be called in witliin two years from 
the date of inoreaae. Aeting upon this opinion, your Board 
directed the Treaaurer to call tbe remaining unpaid sub- 
soriptiona to be payable Sept. 22, which haa been done, 
although the financial condition of the Company did not 
necesaitate the call. 

The preaent authorized capital of the Company, viz., 
$1,080,000, will therefore be full paid as soon ns all pay¬ 
ments on the Inst instalment are collected. 

A profitable field for the extension of the business of our 
local Companies has been found in street lighting. Until 
recently very little attention was given by us to the lighting 
of streets, mainly on account of the comparatively few lights 
used within large areas and long distances, which neces¬ 
sitated the use of heavy copper conduotoi-s, thus presenting 
a serious obstacle to the lighting of streets in an economical 
way. By the rise of what is known as the “ municipal system,” 
as now applied by your lioonseo companies, a current of 
greater intensity is employed which permits the use of small 
conductoLS, and by placing the lamps in series economical 
and satisfactory results are obtained. This euahles our 
licensee companies to compete successfully ivith ore light 
and gas, for street lighting, as well as for interior lighting. 

As stated in the lost report, the olectiio railway patents of 
Mr. Edison were assigned to the Electric Hallway Co. of the 
United States, in which the Light Company has one-sixth in¬ 
terest, viz., $333,333.34. 

AiTnngements have been mode with the Manhattan Bail- 
way Co., of Now York, to conduct experiments on its Second 
avenue lino of elevated railway, for the purpose of testing 
the practicability of the system of the Electric Railway Co., 
on the' elevated roads in New York City. A third 
rail is now being laid on both tracks of the Second 


avenue line, from Chatham Square to Harlem River, a 
total distance of about fifteen miles, nnd the oar and 
motors for operation thereon, are now ready at the shops of 
the Edison Machine Works, whence they will be moved to the 
track 08 soon ns the laying of the third rail is completed. 
It is then intended to conduct an extensive series of ex¬ 
periments and to demonstrate fully the great merit and 
economy thot is believed to exist in our system. 

The advance of our business in past years has been greatly 
retarded by our inability to refer to central stations that were 
earning money or paying fair dividends, for reasons given in 
reports of former years. Capitalists were naturally unwilling 
to invest money in any enterprise unless it was backed by 
good results, no matter how favorable the investment might 
appear prospectively. We can now point mth pride to 
almost all of our central station companies, where financial 
success is on accomplished fact, and a visit to them inspires 
such confidence that it is becoming much less dilHeult to 
enlist capital to organize similar companies in other cities 
and towns. 

In conclusion, your Trustees would say that nearly idl the 
difficulties which have beset our path have been overcome, 
and wo regard the future of the Edison Light and the suc¬ 
cess of your Company as assured. 

The Balance Sheet of the Company to October 1st, 188S, 
is submitted herewith. 

By order of the Board of Trustees. 



66 Fifth Avo., New York, Oct. 27,1886. 

. / o z c 




, , OCTOBER 2G™, 

has also boeu sHvioiuloiotl to ouoomago tlio otlior stooIclioMoM 
to put thoir plant, wliioli was ono of tlio oavliest aud most do- 
fuctivo instullod (over tour yoara ago), in proper shape, and to 
mcrease iU eapaaity. This has already been done, and it is 
believed tliat this concession whicli, under all the cirouinstancos 
wasajustoue,uill bo more than repaid whenever a further 
incroaso of the Suubury station is made. 

As so much of our own prosperity must depend on that of 
the licensee Illuiuinating Companies, whoso stocks wo hold 
your Trustees have sought to collect and submit to you below 
detailed reports on the actual eoiiditioii of some of the Wo 
I luminating Companies organised and in operation up to date. 
Many of the recoutly organised conipauios, such ns Koek- 
tord. Ainstodani. Atlantic City, Cincinnati, Wilkosbarre, 
SCI aiitoii, Topeka, New Orleans, St. Paul and Atloona have not 

AV. T. lu gouoral it may be said that this valuable feature 
of our business has reached o practical footing. 

Tlie operations of the Isolated Company, while very lorge, 
have not been satisfactory. Competition in isolated plants must 
be expected until our patent suits are decided j and during the 
past year this competition has been so keen us to leave no 
money whatever in Isolated business; indeed, oftentimes sales 
have had to be made at less than cost. If any profit at all has 
existed, it has gone to the manufacturers, aud your Trustees, 
together with those of the Isolated Company, have sought to 
have our manufacturing companies take charge not only of the 
making, but also of the selling of Isolated plants while this rm- 
satisfactory state of affairs exists, on a basis of equity to all con¬ 
cerned. In this desire they were met most readily and fairly 
by the manufacturing interests, and the result was that last sum¬ 
mer Borgmann & Co., the Edison Lamp Company and the Edison 
Mnohino Works, while each in-eserving their own identity, united 
informing The United Edison Manufacturing Company, which 
concern has now taken over from the Isolated Company nil 
that pertains to Isolated business, agreeing to pay the Isolated 
Comxmny certain fixed royalties and also one-half in any profit 
that may bo shown. Thus our manufacturers are brought in 
direct contact with our competitors, the expensive clerical 
machinery of the Isolated Company is abolished, and profits in 
the p-ay of royalties are secured for the Isolated Company. 
The wisdom of this change must be so aiqmrent that your 
Trustees deem it dwell on the subject at any 
groat length. 

The Isolated Company still acts as our Exifioiting Agent 
for Central Station business uudor the eontract made in 1881. 
While that arrangement was necessary at the time, owing to 
the low financial condition of your Coinpimy, and has resulted 
greatly to your benefit, it is now believed that the success of 
your Company and also of the Isolated Company, could be 
promoted by the consolidation of the two enterprises. 


The paid-in Capital of the laoiated Company is $370,200 
iaauod for cash and $382,600 issued to this Company for 
patent rights. There is an additional amount of capital which 
has not yet been called for by tlie Isolated Company and which 
it now seems unnecessary to call. 

It is proposed in substance, therefore, that the Capital of 
the Isolated Company bo fixed at its present amount, say $752,- 
700, against which it has on hand, cash and available assets for. 
about $370,000, and the patent rights acquired from iis 
for $382,600, ns stated above, whioli patent rights carry with 
them valuable royalties developed in the Isolated business. 
The Isolated Company can turn over to this Company all its 
assets, patent rights and royalties of every kind and in ex¬ 
change it is proposed wo shall cancel our own stock holdings 
in the Isolated Company and issue to it such an amount of our 
stock as will give each stockholder of the Isolated Company 
in the proportion of $300 of Light Company stock for every 
$400 of Isolated stock now outsanding. Your Board are en¬ 
tirely in favor of this plan, and recommend that all necessary 
steps be taken to carry it out. They believe it to be equitable 
in itself and oaloulated to promote the best interests of all oon- 

Tlio contract previously existing between this Company and 
the Western Edison Light Company, which exploits both our. 
Isolated and our Central Station business in the States of Wis¬ 
consin, Illinois and Iowa, has boon considerably modified. The 
Western Company had been put to great disadvantage, espe¬ 
cially with its competitors in Isolated business, by reason of 
certain onerous restrictions in the original contract, which were 
of little or no practical value to us, while they noted as an ef¬ 
fective barrier to any cousidorablo business by the Western 
Company. At the time of its organization the Western Com¬ 
pany paid us $60,000 in cash for its license rights, and under 
the new arrangement there is held in trust for our benefit $100,- 
000 of its stock (out of $600,000 capital) wliich the Western 


Company is gradually to retire by delivering to ns in its stead 
stock of Central Stations to be organized by it under conditions 
satisfactory to ui . 

The Electric Eailway Company of the United States has 
continued its experiments with some degree of success, though 
not so satisfactorily as was hoped for a year ago. The defects 
in its system seem, however, to bo mot by certain inven¬ 
tions controlled by the Sprague Electric Eailway and 
Motor Company, with which this Company and the Eloo- 
Electrio Eailway of the United States are on most friendly re¬ 
lations, and a eonsolidation of the two systems is now under 
consideration. The inventions of the Sprague Company are so 
novel in their oharaotor that it is believed they would bo pecu¬ 
liarly free from intorforoiico with or trouble from other iuven- 
toi-s; and, taken in coiiuectiou with the established claims of 
the Electric Eailway Company of the United States, would 
practically control the field of opeiations. 

During the past year the counsel of the company have boon 
aotivoly conducting the litigation on our patents. In some of 
the suits brought against the various infringing companies, tes¬ 
timony on behalf of this company has been already talcen, and 
in others is in process of taldng. In those suits whore it is 
claimed the American patents have expired by reason of the 
limitation of foreign patents, the question of law involved will 
probably be argued this fall. Testimony has also been taken 
in the suits brought against this company by the Consolidated 
and United States Companies, and all the suits brought both 
by and against this company are being pressed by the counsel 
of the company as rapidly as possible, and it is^expeoted that 
within the next year some definite results rvill be reached. 

Within the past few months our central station patents 
Imvo for the first' time been hifringed. Suita are about to bo 
brought on these patents and will be pressed with the utmost 
vigor. Tlie great amount of work required in those litigations 
has made it necessary to emply additional advisory counsel, and. 

at the suggestion of the oounael of the oompauy, in addition to 
Mr. Svarts, Mr. Olarenoe A. Seward has been retained. 

Active work has been dona in the soliciting of new patents, 
and several important patents have been obtained. 

In the past, your Board has received frequent requests to. 
furnish statements showing the profit or loss on your business. . 
These requests, while most natural in themselves, have been 
quite impossible to comply with, owing to the question of valu¬ 
ation of patents. In determining the result of business, at what 
sum should these patents, which have .cost about $750,000, be 
carried forward? Until within the last two years their value 
hud not been demonstrated ; we now have, however, reached 
a stage which offera some basis for calculation. In the past 
twelve months your patents have earned for you $244,350, 
at which rate they would pay for thoinselvos in throe years, and 
under such oiroumstanoes, your Board would certainly be justi¬ 
fied in carrying them forward at their cost as they aro evi¬ 
dently worth that sum many times over. Acting,. however, 
on the theory that the cost of patents, however valuable they 
may bo, should be gradually written oft', as the life of the patents 
themselves grows shorter year by year, your Trustees, in making 
up the statement of profit and loss attached to this report, have 
deemed it prudent to charge off 25% of the cost of aU patents, 
and recommend that hereafter an annual reduction, of say 
16% of their cost be continued, so that iu a few j’ears the ac¬ 
count of patents shall disappear from our books altogether. 

In the computation of Profit and Loss, the stocks of our var¬ 
ious Illuminating Companies hold by us. have been taken at 
their par value, though on the average they are worth more. 

It moy not bo amiss to state here that the practieo of issuing 
watered stocks has not been permitted by us in the ease of any 
of the Edison Ulumiunting Companies, and they all represent, 
dollar for dollar, eashpaid in and the regular payment to ns for 
our license rights. 

It will be noticed that in the statement of Profit and 
Loss, the stocks of the Isolated Company and of the Electric 
Bailway' Company have not been taken into considera¬ 
tion, though if they had been taken at their face they 
would increase the result by $715,900 ; but ns the value of the 
railwoy stock has not yet been shown, and as the Isolated 
Company will probably bo shortly consolidated with us, 
your Trustees have preferred to err on the conservative side, 
and leave those items in abeyance for the present. 

Your attention is invited to the,Balance Shoot herewith.. 

By order of the Board of Trustees, 



16 AND 18 Bboad btbeet. 

Now York, October 26, 1886. 


Incandescent Lighting 



I'l-ioMAS Alva Edison and otmews. 


65 Firni AviiN'uic, 


SEJooliru EuiTionsr. 

The Edison Electric Light Co. 


ICUtiliNli CKlIWHI.I,, l■R^alD^;N•r. 


K. 11. JOll.NSO.V, 


i:. a AIJA.MS. 

A. l■•o.sTl;l{ iiiaci.\.s. 
R. I- curriNt;, j„. 



License,I I.,- the ^;,lison lileetrie l.i„l,t Cn. for the ..cle of h„hi„| 
forinntlon of Station Conipatiies. 


F. S. HASTINC.S, | '' •^'AN.ncKK. 












Nkw Youk, July 1st, 1885. 

Ill ortlor ti) iinswer tlio iimiiy ciuiuinos coiistiuitly 
coming in fi'om all parts of tlic country, we take pleas¬ 
ure in sulnuitting a conilcnscd statement of onr busi¬ 
ness, its success elcctricall}’, meelianieally ami commer¬ 
cially, together with a brief outline of its history, and 
especially to state generally the methods adopted foi‘ 
the formation of sub-con'-iianies foi- the purpose of 
lighting cities and towns fi’oin central stations. For 
the information of anj' who may be uiifanuliar with the 
subject. Ictus Hrst consider the light itself. 

Alio AND Lami's Co.^II’AUKD. 

These twosystemsof lightingare radically differontand 
distinct, a fact which must be borne in mind when consid¬ 
ering the ipicstion of what is po])ularly called “ Electric 
Lighting.” The arc is a light of great intensity—each 
lamp being the result of abpiit one-horse power of steam 
energy condensed iii one small point—is very dazzling 
and trying to the eye, and, from the very nature of its 
mechanism, is unsteady, ilickeriiig and changeable. Its 

lm.l economy is imrtly to the great ainmmt of 
energy condensed in so small a point, the di^mve 
power of the light not being in proportion to its great 
intensity, or, technically speaking, the volume of light 
decreasing invereely as the stpiarc of the distance. 

Tlie incandescent is a small, soft, steady light, of tlie 
bri-ditness of an ordinary gas jet, and is therefore espe- 
ciafly adapted for domestic and industriid ])iirposes. 

The lamp itself consists of a pear-shaped glass globe 
about four and a half inches in heiglit, e.xlimisted of 
air. into which is sealed a lilament of carbonized bam¬ 
boo sVnditly thickm’ than a horse-liair. ll..s lil....iv-..t, 
beeombig incandescent by tlie passage of the current of 
electricity through it, emits a bemitifii , soft white 
li.dit, absolutely steady and constant, and equaling ui 
intensity, or exceeding if desired, the dliimmatuig 
power of a gas jet of the best quality. _ _ 

The lamp is screwed into a socket which is perma¬ 
nently attached to a gas or other chandelier or bracket, 
and imtains a key whereby the light iii the amp may 
be turned on or oif. The lamp, once screwed into the 
socket, needs no further attention or care until the oni- 
bon breaks, when the old lamp is unscrewed from the 
socket and a new one screwed in, the work of a few 
seconds, and of an ordinary domestic. Ihe 
in the number of hours which they will burn but then 
average life, at 16 candle iiowor, exceeds 600 hours of 
actiiaf burning. Each light is entirely iiidepe.ideiit of 
the others, and may be arranged and controlled singly, 
in pairs, or in groups of any desired number, and m(iy 
be placed in any position whatever, inverted or otlier- 

The Edison lamp gives out but little heat (less than 
oiie-lifteenth as much as gas), may be grasped by the 
naked hand without iiicoiivenienee, is absoln ely tree 
from odor and poisonous or noxious gases, and neither 
heats nor vitiates the surrounding atmosphere. 

The lamp does not explode, and even if the glass is 
broken by any aceideiit, tlie carbon is instantly con¬ 
sumed and the light at once goes out harmlessly. 

Be.sides being unequalled for domestic and general 
illumination, the light is especially adapted to the work¬ 
shop. For the desk and workbench it is superior to 
any other artificial light, inasmuch as it is absolutely 
stiidy, and by inverting the lamp, its whole light may 
be thrown on the work in hand, in any required posi¬ 
tion whatever. , • • • „ 

The light, although bright and clear, is not injurious 
to the eyes, even if used close to them. Indeed it is 
found in practice that weak eyes, previously injured by 
gas, may use the light with impunity. 

The fixtures used for this lamp are of the same gei - 
ernl character as those used for gas, ineludmg swing 
brackets, drop lights, iiortable lights, together with de¬ 
vices for inverting the light or burniii„ it ii ny j si 
tion, perpendicular or otherwise, and also tor burning 
in firedamp and under water. 

There is no danger to life, health, or person, in the 
current generated by any of the Edison dynamos, l ie 
intensity of the electric current is so feeble tha tlm 
wires at any part of the system, and even the poles of 
the generator itself, may be grasped by the naked 
hand without the slightest effect; in fact, the cun cut 
is scarcely’ perceptible to the touch. 

Besides the siifety from injury to tlie peivion, nnotlier | and South America, and from this, tlie Parent Company, 

prominent feature of tlie Edison system is its freedom i all the suh-companies working under the Edison system 

from danger of fire. This is secured by means of a I deriv<! their e.vistenco. Of these patents, 2(i0 have been 

small automatic device invented by Mr. Edison, called • already issued in the United States, including the jiatents 

the “Cut-out” (or “Safety-catch”), which may be securing to the Edison Comi)any pri'n- 

compared to an overflow pipe in a water S3’stem, or to ciples of incandescent Uphtiiui, and there are applica- 

a safefy valve oil a steam boiler. The safety-catch con- . tions for 187 additional patents still pending in the 

sists of a small piece of wire, fusible at a low tempera- Patent OlHce, which number is being eonstantly in- 

ture, which is iilaced in every circuit. If, therefore, creased bj' Mr. Edison’s further inventions. These in- 

the wires should become heated from anj’ cause, this ^ ventioiis form the complete si/slein of Edison’s incandes- 

safetj'-eatch would at once melt off and o])en the cir- cent lighting, now .so com|detuly introduced into pulilic 

cuit, thus averting all possible danger from fire. The use. 

circuit can be again closeil b)' taking out the .safetj’ There are two methods of introducing the light, viz., 

plug and ])utting in a now one, the work of a moment. by independent or Isolated Plants, where the aiiparatus 

Fires from electric from one of three causes: is owneil, controlled and opei-ated b)- the ii.ser of the 

first, a crossing of wires, tliat is to saj', wires coming hoht, and b^- the Oeiitral Station S^'stem, wiiiu-e tlie 

in contact with each otlier; second, the juinjiiiig of the ^ eiirreiit is generated at a common .source, and distrilmted, 

current from one wire to tlieother; third, the overloading after the general plan adopted by gas companies. Tlie 

of wires witli a greater amoiiiit of current than thej'are a Ih’st metliod is conducted lij' the Edison (Jomiiaii)'for 

calculated to bear, and .thereby melting them. Under j Isolated Lighting, wliicli was organized in Novemlier, 

the Edison system tires are impossible fi-om aiij’ of 1 1881, and which, as a licensee of tlie E lison Electric 

these three sources. Not oiilj’are the wires thoi-oiighly 1 Light Companj', is entitled to do biisiniiss iiiidei the 

insulated, and, also, ivhen neeassaiy, protected bj' ’ Edison patents for electric lighting. Since its organi- 

iiioiilding.s, but the “cut-out” is so introduced in the zation, and up to this date, there have been installed 

wires that fire from any cause whatever is absolutely ' in mills, factorie.s, hotels, steamships, stores, residences, 

impossible. The lamp is now in use in a large luimber «tc., in the United States alone, iiiiwards of .000 isolated 

of factories, public institutions, stores, steamboats, , plants, aggregating about 120,000 lamps, in addition 

steamships and dwellings, yet no fire has ever taken ^ to about 70,000 lamps operated from central stations, 

place in the ISdison sj'stein. w ( . The installation and use of these isolated plants, 

■f mostly by private enter]), have involved indiviilual 

investinents varying from $.500 to $50,000. No other 
iN'riiODUCTiON OF THE System. evidence could more forciblj" demonstrate (1) that the 

light, as a light, TO«s< be giving satisfaction; (2) that 
The Edison ISlectric Light Company was organized being used on so large a scale, its economy is fu'inly 

for the purpose of acquiring and owning all of Edison’s established; and (3) owing to the large sums of money 

patents for electric light, heat and power, in North invested in plants bj' individuals and corporations, the 

value of the system as an investment lias been doter- 
minetl beyoiul iiossibility of doulit. 

It lias frofiiiently been found tliat the cost of the 

light in mills, etc. (wliure atteudanee and ])o\vei' are 

[ t 1 t 1 I ] 1 artioii of their cost), has 

been equal to gas at forty cents to one dollar jier 

thousand feet, varying with the cost of fuel and the 
number of hours yearly use. 

Estimates for lighting of this class may be had on 
application to this ollice. 

The inauguration of this business on a large scale was 
commenced by the granting of a license to the Edison 
Electric Illuminating Company of New York. This 
company selected its lirst district in the lower part of 
the city, and immediately jiroeoeiled to install a central 
station plant with a capacity of 8,000 lamps. 

About twenty-eight miles of conductors were laid 
uniler the streets, and tl.'e current was lirst delivered 
to a small number of customer.s, September 4th, 1882. 
The first bills for light were rendered to customers iu 
January, 1888. The price charged for the light in 
this ilistrict is at the rate of 1 ^ cents per hour for each 
sixteen candle power lamp, which is eipial to gas at 
§2.25 per thousand feet. 

The Edison meters furnish the data, in every case, 
from which the bills for these eustoniei's ai'e made out. 
Each has a meter in his own premise.s, and his bill is 
made out and iniyment required upon what the meter 
shows. This intlexible rule has resulted in fixing close 
attention upon the meter, and has caused its accuracy 
and reliability to bo subjected to severe tests. To 
measure accurately the electric current by means of ii 

meter, and to do so ^^’ith sutlicient exactness to make 
out a bill, the ])ayment of which was to be insisted 
upon, at lirst seemed to many of our customers an im- 
po.ssibility; and they accordingly re.sorted to various 
devices for the purpose of themselves testing the 
accuracy of the measurement. The most noteworthy of 
these, and one especially worthy of mention, for the 
rea.son that it all’ords a sinqile and effective cheek 
against an incorrect bill, was to keep a record of the 
hours each lamp was in use, and, by multiplying this 
number of lamp hours by the given cost of a lamp per 
hour, to determiuo what the amount of the bill ought 
to be. 

I'liere have been many cases where, in order to 
satisfy customers that the meters were reliable, we 
have taken them out at the end of a given time, 
during which the customer has kept an account 
of his lam]) hours, mid have ]>resented bills made out 
on what the meters showed, in order that the customer 
might check the amount of the bill by the simple rule 
mentioned above. In all of these cases the accuracj’ of 
the meter has been maintained, and the confidence of 
I the jmblic has steadily increased, so that, at the present 

: time, it can be safely said that the Edison meter, 

' originally considered by some to be, jiossibly, the only 

doubtful part of the Edison system of central station 
lighting, is now generally admitted to be both scien¬ 
tifically and practically exact and reliable. 

•' rerhaps the most imiiortimt element in the success of 

- ■ ail entoi'iirise of this nature is the commercial aspect, as 

shown by a Imlance sheet. In this connection, it should 
be borne in mind that our first district is one of the 
poorest in this, or, indeed, in any other large city, by 
reason of the limited anionnt of night lighting. The 
I district embraces no residences, hotels, saloons, theatres, 

I or places of amusoment of any kind, nearly all the 

lighting being done during the dny, and a largo por¬ 
tion of it oidy from dark until about six o’clock P. M., 
during the winter mouths. 

During the ])ast eighteen montli.s wo have incrcn.scd 
the capacity of tin; station about forty jjer cent., which 
iuci'ease lias been paid foi’ out of our carniiig.s, the 
entire eaimuitv lias been taken up by new cu.stomer.s, 
the comiiany is entirely free from debt, with a cash 
siiiplus on hand, and applications for more light than the 
station can siiiiply. The earnings will hereafter be ap¬ 
plied to the payment of dividends, which are now being 
declared and paid regularly, thus demonstrating the com- 
merciiil siieeuss of the Jiilison system of lighting from 
central stations, even in a first ex])eriment with all its 
attendant mistakes and extraordiiimy costs. 

As already stated, the price charged for the light is 
an equivalent of gas at §2.2.') per thousand. Some 
months ago the iirice of gas was reduced to SI-')0 jicr 
thou.sand, for large consumers. One of our largest cus¬ 
tomers, [iroiirietors of a well-known establi.shment.oiier- 
ated on jninciples of the strictest economy, notified ns 
that, although they much jireferred our light, we 
would make a eorre.sponding reduction in our price, 
they would be obligeil reluctantly to return to the use 
of gas as a measure of economj'. We declined their 
proposal, on the ground that wo had iqiwards of one 
hundred apjilieations for the light in e.xcess of the 
capacity of the station. Sevei'al months have elapsed, 
and they continue to use our light and pay our bills, 
regidarly, at the old,established price. 

That the reduction in the price of gas did not affect 
the sale of our light will be shown by the following 
statement: wo lost nuw consumei's—300 hun])s— 
from whom wo received §250 pur month. This loss 
gave us an oppoi-tunity to supjjly current to seven 
others that had been impatiently ^vaiting till we coidd 

supply them. Among these, Hai'por Bi'os., Bank of 
New York, New York “Sun,” etc., aggregating about 
320 lamps, for which we receive about .§150 jior month. 

The system of Central Station Lighting being proved 
eonunercHdlji, we have been elVecting the formation of 
central .station lighting comi)ame.s, with local capital, in 
various jjarts of the world, a |)artial list of which is 
given below: 

>F <irrv lilt lowN. 

J IVnnsylvanm.... 

Ktill Kivit.... 



.! Miissaoluisvtls.. • 



Dcrt ..... 

N»\v nriiiiKwiiik.... 



Will it I’AY f 

Those of the above-mentioned comiiames that have 
been in operation a reasonable length of 
that they arc earning a handsome dividend on their 
caiiital stock, varying from six to twenty per centum 
per annum, although none of them have as yet con¬ 
nected the full capacity of their respective stations. 

Suvuriil clivuluiids Imvo iilrendy buoii paid, and these and 
others will lie eoiitiiiiied l•eglllarly, in projiortion as 
the business of the several stations inereases. Take as 
an example one of our more reeent stations. The 
eom])any referi'ed to stni’ted with a cajjacity of 15,200 
lamps, ^vith a resei've to jii’ovido for accident. Follow¬ 
ing our advice, and in many particulars even e.xceialing 
our j'econmiendations. the station was installed in the 
most thoi’ongli jaissible manner, with ami>lc reserve 
both in nn'chamcal and electrical ajipliances, .so that 
neither would evei' be called upon to its 
capacity, tliereliy securing the maximum of economy 
and minimmn of depreciation. As a re.snlt of the 
confidence tlins inspired, consumers did not hesitate to 
abandon gas, knowing that the sujijdy of electric 
current would be rjiiito as much to be relied upon, and 
the station was started iSlay 1st, last, with :5,000 lamps 
connected, all of which were nndcr contract for one year 
or more. Tlicsc contracts sccnreil to the local company 
a net profit, aliove all expenses and deia-eciation, of 
§1,700 jier month, llie companj’ is now earnnnr at 
the rate of Full Ckxt. i-Eit Annuji, 

and will soon begin to pay regular ten ])er cent, semi¬ 
annual dividends. 

This gratifying result has led the company to 
increase its capital stock, and orders for additional 
apparatus have just Ijoen given ^vhieh will increase tlie 
present caiiacity of the station from <5,200 to 4,800 
lainjis. Aside from the eliaracter of the investment, 
this enlargement of the jilant has been made necc.ssiiry 
by I'eason of the raiiidly increasing demand for the 

(;)ur present policy is not to part witii niigi, poiuuns 
if territory, or to sell territorial rights, as is being 
ittempted by companies not yet past their experimental 
itage, but io grant to separate companies, formed with 
ocid capital, exclusive licenses for tlie use of the llidison 
intents, within specific cities and towns. 

In selling a central station plant to a sub-company 
io formed. Instead of charging a cash profit for tlie 
iilaiit and eipiipmcnt, we charge only the actual cost of 
the iihiiit, and in lieu of all profit we take a percentage 
,f the capital stock of the snb-company, payable 

miiei dl> 111 1 I lit 1 h 1 tl I 1 *• 

Lck itself, wliich insures to the snb-coinpany our 
interest in the .successful operation of the iilant. 

By this plan tiie Edison Electric Light Company 
beiamies a large stockholding company, and its iiriine 
object, as a partner in the various siib-coni panics, is to 
make their stocks dividend-iniyiiig, since its ciwii income 
must Vic derived from the dividends accruing on the 
stocks which it holds. 

This will be recotriiiy.ed as a ineasiire obviously iii 
favor of the siib-liccnsee, and we have biaa* K;vl t.. .t.. 
adoption by our faith in, and knowledge of, the 
po.ssibilitic.s* of the .system commercialli/, as well as 
nicchaiiically and elccti ii;all>. 

AVere we to sell the plant outright, charging an 
advance over cost, and taking the jirolit in cash, the 
revenues thus acciiiniilatcd would bi Uig '-••1) tl.c 

eiirrent rates of, ivliereas wo have now had 
siillicieiit experience to assure ns of a much greater 
income liy taking these profits in stock, and so retaiii- 
iiig an interest in each central station plant. 

Ill consideration of this stock iirofit issued to us by 
the sub-company, we grant an exclusive license for the 


use of till of Ml'. Ellison’s inventions roliiting to eleetrio 
ligiit, iieiit and power witliin tlie corporate limits of 
tile city or town to lai iiglited. 

C’os'r OK Cen’I'kai. St-viton Plan'I's. 

A central station plant and c(piii>nient consists of a 
lot, Imilding, l)oiler, engines, dynamos, apparatus for 
regulating tlie current in [iroportion to tiie nnmlier of 
lamps in use, meters, street conductors, and a full 
(...mplopient of (;lie tools, instrnments and apparatus 
ro([nired for the proper operation of the system. It is 
impossihle to estimate aecnrately the cost of sneh an 
eipiiianent complete, without making a survey and 
canvass of the city or town to he lighted, although for 
a given mimher of lamps, the cost of the station erpiip- 
ment itself may he ascertained hy application to this 
oillce, or to an agent of the company. The unknown 
ipiantity is the cost of the street conductors, which 
varies in every locality, and depends upon the ihstrihu- 
tion of the lamps, their distance from- the central 
station, whether compact or scattered, ifec. From a, 
general description ot a town, its iiopiihitn/ii, 111^,1., Ac., 
a coinjiarison may he made with otlier towns already 
lighted, and, Ijy such a comparison, a general idea may 
he formed of the appro.ximate cost of a plant, which 
will serve as a guide in the formation of a company. 
Before execnting a contract, however, an accurate can¬ 
vass and determination are made, and the snli-company 
is furnished with a detailed statement of the cost of 
the plant, at whieh price it will be installed and 
operated for a siifllcient length of time to iiistriict the 
local employees in its use, when it is turned over to the 
sub-company in complete miming order. 

It must be borne in mind, however, that this eoinpaiiy 


makes no profit whatever in the installation of these 
plants, and, being a stockholder in the local company, 
onr interest is in having the plant installed at as low a 
cost ns is consistent with thoroughly proper constrne- 
tion. It is, therefore, at the option of the local com¬ 
pany to jnirchase the boilers, engines, dynamos and 
apparatus themselves, installing then own plant, on 
plans and specifications tnrnished by ns, with the aid 
of onr e.xperience and mider the personal supervision 
of onr own trained experts. On the other hand, the 
rapid growth of the business has led to the organization 
of responsible coiistriicting firms, who are thoroughly 
competent to erect and equip these stations, and who 
will at any time furnish estimates and proposals for the 


' These stations are now coiistrncled in accordance with 

a standard adopted by the new management after a per¬ 
sonal and most thorough examination of the jiast exjie- 
rience and present condition of e.xisting stations. This 
j examination has forced the present management to the 

i inevitable conclusion that in the construction and ope- 

' ration of central stations, there are two elements, which, 

‘ while they have always been regarded as important, 

\ must now be insisted upon as ahsohttelij essential to the 

successful development of the business. 

I We refer to eeonomy and reliability ; l>nt while econ- 

omy is to be carefully studied and sought after, both in 
construction and o]ieration, economy in operation is the 
desideratum, and we will demonstrate conclusively, not 
only that this feature of success does not always follow 
what would ordinarily bo regarded ns economy in 
construction, but that it can only be secured by a judi¬ 
cious liberality of expenditure in the first cost of the 

pliint. Importfiiit na this niiiy be, however, it sinkf 
into iiisignifieniice -wlinii c!orn])iire(l witli the one vital 
(pieation of reliahilit!/. Tliia is the one i< .piwite, suit 
</im non, ixiviimonnt to nil other eonsideriitions, and th(‘ 
tmo principle whi(di we, ns stoekholders with the loenl 
people, must now insist upon ns essential to the estali- 
lishnieiit of a fixed eoinmereial and intrinsic value 
to the stocks nccuninlnting in onr treasury. How to 
secure most elTectiinlly this end has been the study and 
aim of the ])resent management. 

Our first central slations were jait in on the theory 
that as th(! engines would be selected of such a size as 
to obviate the nec(!ssity of their (!vcr lieing worked u]i 
to their normal capaeity, no reserve woidd be reipiired. 
Although this theoiy was in a nnatsiire correct, it was 
found in ])ractice, that many gas consuinei-s, whose busi¬ 
ness lUicessarilj- dependeil to a certain extent upon some 
form of artificial light, were unwilling to cut off their 
supply of gas, so long as their sujrply of .deetric light 
' ' 1 ' 1 1 1 1 lity of one engine. The 

exidanation that tlnu'c was a i’es(*rve capacity in that 
engiin; itself was not sufficient to satisfy them in assum¬ 
ing what they regarded as a risk. In order to over¬ 
come this jire jiulice some of our local people were there¬ 
fore comjielled to put in spare engines and dynamos in 
order to induce some large consumers to cut off their 
gas, and by this means they succeeded in securing some 
of the most desiiuble customers within reach of the sta¬ 
tion. Hence, u-e now insist on carrying out this gen¬ 
eral principle of proviiling a reserve wherever possible, 
in every detail of construction, with two inevitable re¬ 
sults : first, the public is inspired with confidence from 
the fact that they can dejiend absolutely ujion a con¬ 
stant supply of light, so far as any hiininn foresight can 
assure it, even with greater certainty than can be e.\. 
peoted from an ordinary gas works; and, second, In¬ 


reason of the confidence thus inspired, the station is 
started with n mifficieiit immber of customers to insure 
a profit from the beginning, and to earn a dividend the 
fii-st year of operation. 

Cost oi- tiii; Lroirr. 

The cost of producing the light and distributing it 
from central stations varies greatly, according to the size 
of the plant, the average hours of daily use, ifec. For 
e.\Tinijde, a plant with a given capaeity and the requi¬ 
site einjdoyees, will require a certain number of lamps 
coimccteil and running, in order to pay the actual ex¬ 
penses of operating. Increase the imniber of lamps, 
the receipts will be increased proportionately, while the 
e.xpeiises of operating will remain almost constant, ex¬ 
cepting the cost of the additional coal and lamps, which 
is a small proportion of the aggregate ojieratinir ex¬ 
penses. As a praetieal illustration, the experience in 
some of our central stations already in operation may be 
of interest. 

In one city, the price charged coiisiiiiiers was fixed at 
an equivalent of gas at $2.2.') per thousand, and the sta¬ 
tion commenced operations with only a small proportion 
of its lamp capacity in use. After riinning a short time, 
it was found that the actual cash rccei])ts were only 
siiflicicnt to meet the running expenses. Under these 
conditions, the cost of the light to the company was 
equal to what it received, viz., an equivalent of $2.2") 
per thousand foot for gas; but at that time there were 
cuiuiccted and in use oiih- a very small proportion of 
the number of lamps for which the station was calcu¬ 
lated. New customers Avere daily added, until the cash 
receipts were nearly double the expenses, and by the 
same calculation it was founil that the light cost the 

eonipim)’ nu equivalent of §1.16 per thousand for gas, 
or Old)’ a little more of what they were 
receiving. As tlie numlier of lamps increased, the in¬ 
crease of running e.xpenses was barely appreciable, 
^vhile the receijits were inci'cased proportionately with 
tile nuinber of lamps connected. 

In another gas town, a central station was started a 
short time ago, with a capacity of sixteen hundred 
laniiis. At the pre.sent time they have only four hun¬ 
dred lamps connected, and the income from is suf¬ 
ficient to ])ay the running e.\i) of the plant, show¬ 
ing that when all the lanqis are connected, a very hand¬ 
some jirofit will be earned, which, it has been e.stimnted, 
will be sullicient to pay annually a dividend of more 
than twenty-five jier cent, on the capital stock of tlie 

In a still smaller town, a plant of only five hundred 
lamps, which has been in operation only a short time, is 
already earning a jirofit which will be equal to an an¬ 
nual dividend of twenty per cent, on the capital 
stock of the comjjaii}'. 

While these statements of facts in connection with 
th(! cost of the light are interesting by way of compari¬ 
son, e.xperience dictates that the price of gas in a city or 
town has absolutely no bearing whatever on the price of 
the incandescent liglit. Such has always been the 
theory of Mr. Edison, and it has been fully and notably 
laii'iie out by experience. The policy' of our sub-com¬ 
panies has been to fix a fail- price foi- the light, insually 
about the same as has been charged for gas, and to stand 
by that price, without regard to any action the gas com¬ 
panies might take. In one town, where gas was selling 
at §‘1.00 per thousand, our sub-company', considering 
this price too high, and being confident of a handsome 
profit on a lo\vor basis, commenced charging an equiva¬ 
lent of §2.50 per thousand. The gas company, becom¬ 


ing alarmed, immediately lowered their price to §1.10 
per thousand. The residt has borne out our theory in 
every particular, and not only have they under such 
circumstances failed to inlluence any cu.stomers fi-om us, 
liut in many mstance.s. people who had been u.singkero¬ 
sene gladly took our light at the jn-ice established, al¬ 
though the gas company offered them every mducement 
to use gas, in .some instances going so far as to offer to 
furnish a fidl equipment of gas i)ii)e, fixtures, ifec., free 
of expense to the consumer. 

The following table, .showing the cost of opei-ation, is 
not a mere e.stimute. but is based upon the exjienence 
of stations actually established. Such items as coal, 
water, taxe.s, insurance, Ac., will, of course, vary' in 
different locnlitie.s, but arc given as a fair avei-age, with 
the exception of coal, which is calculated at four dollai-s 
per ton. The daily' consmniition of light is calculated 
'2j4, 3, ‘^'A '"'d -1 hours consumption: 


Given 11 ooniplete station, anil tlie cost of operating it 
iiler varying conditions, it remains for the local com- 
iny, as in any other enterjirise, to adopt such nianage- 
entand Imsiness metliods as will insure an economical 
lininistration of its affaii’s, and a fair price for its pro- 

In the tallies on the following pages the expenses 
ive been taken from the tidde on the intending pages, 
111 the receipts have lieen liased njion an equivalent of 
us at $1.50, $2.00 and $2.50 iier thousand feet, with a 


Cojii’AHisoNS WITH Gas. 

■\Vliilo coiupm lsons with gns are interesting for pnr- 
])oses of calculation, practical e.xperience aiYonls daily 
evidence of tlie fact that the price of gas has no more 
infliience on the price of our light, than the price of 
candles has on the jnico of kerosene. On the same 
principle, it is difficult to demonstrate theoretically why 
the advent of elevated railways, with their enormous 
jiiitroimgc- has not done away with surface cai-s; and yet 
the fact remains that there is patmnage for both, and 
both are tinancially succe.ssful. 

The fundamental principle is this: people have con¬ 
tinued the use of gas while the price of kero.sene has 
been constantly declining, simply because of the su¬ 
periority and greater convenience of gas, and for the • 
same reason they will continue the use of the incandes¬ 
cent light, iiotwithstaiiding any reduction exjieriiiiciitrfs 
may accomplish in the cost of producing gn.s. The 
jiossible uses of gas produced at a low will cover 
a broad field, but, as an illumiimting agent, its useful¬ 
ness is limited; and, in the same manner ns it took the , 
place of kerosene, candles, and other crude fomis of 
light, it is now gradually but surely being displaced by 
the incandescent system. 

Any further iiifoniiatioii may be obtained by calling 
upon or addressing 


(>.') Fifth Avenue, ^ 

New York. ' 


It U but littlo iiioro thnn live yenrs xiuce Jlr. Kilinon co.iccivc.l 
the lilennf Central Station illatrlbiition, at wlilcli time many pronii- 
nent acieiitisU ridicilleil bim.aml arKiieil timt|iouse llglit- 
Ing, on a acale large eiioiigli to rentier tlie unilerlakiiig a eoimnercial 
Bucceiw, waa but an liiipraclienlile ilreani. 

Now even •• our frleutla. tlie enemy ■■ (the tiaa Companies) ac- 
knowletlge Ibnl the problem of suitplylng tlie Kilisoii Ineandoscent 
Light for tlie service of tlie individual consumer, by a system of 
liouBe-lo-hniisc lighting is a pracllcal success, and are content willi 
expressions of doubt as to our ability to make a iirolll in competl. 
lion with them. ‘ 

commmial^umuof mmrr<,u,,MhH, wblcb bavi 


• riiere arc now organiml in the United Slates forty-seven Edison 
lilmiiinnting Cniiipanles, employing a cnpllal of S.'i,000,000. 

operation, and ten of tlieni are In course of conslrucllon. 

pjesc Ilfly-Bcven stations will supply current to about 100,000 

Eillsoii lumps at tlie lime of llielr completion, but as experience 

Immediutelv after onenliii'for t,„si„.,„. t. i. __ ’ 

ready fare|icratlon la tliae for next*lall'8”'l”Klilli 

Tlie commercial success or our fcntml static 
tion or capitalists and Invcstom ol torelim countr 
meat Is engaiied on plans lor conlrai stations Ir 

«. Oiir KnglDperlnff Deporu 
Jiipan, China, HouiU AmorJen 



We In nil plnci-s iiniHiiiiiiT nil comliiions. 

tlilirnccmn'inn!l"k *'‘’'’'7'“ '"■illinncv of n Blnglu mill nmy lie had, 
■uperlor qiinlliy. ^ »II<-nll,i,g light „f „ 

,H.™iiiw.‘"‘ “ •" —'y 

direelly .nil,. Hr,. l„ ....vlhiog, an,I , 

i.«u.n.„».ni.k.,ii.y,i.,. gh.,, g,.,i,.a j, h,n.d.,;ai„,,;;:1., Li;,' 

pnilll ill ilirecl caiiipclitioii wlih gm. '‘">1 »'>l‘l “I » 

for®u »’rnl"ni..v’ir‘':m '” 7 !"^}'' '’’"’‘•'"‘“"S 

tliln wlTh nteim ir" k'"'''/’ . ^ “"‘I’""-' 


Tliin plan coiilfiiipinti'a tlip Inyiiigof all tliv I’ucilur cuiKliictoi'N 
iiiKliTgroiiiKl (Homeliincs iiluci Including Ihc iniwl Inipnrliinl of tliu 

We give the following tables of i 






Most important Apparatus 

Required in a Central Station, 

ng. 1. 

BccUonal view of brick ecHlng of horl7.ontiil tiibiilnr boiler, using 
Jarvle’ patent furnneo for burning clienp fuel. 


^ . )K 

Q°5.vi6var!slvi8«^i®°a®l v|tp®®t, 

* /^®vyy°pJ(Ci^. * 

Sooo^^, 91. 911.^ Sept 17,1886. 

To THE President of the ' 

Laramie Electric Light Co., 

Laramie city, Wyo. Ter. 

Dear Sir ; 

Our people hiere are eq thie eve of grar^tirig a fraricliise to 
a company for ttie erectiori mairitenarice of Gas Works, but 
are folding off for the purpose of more fully understariding- the - • 
questioq of wfiich is tlqe best or most desirable ligfit, GAS of 

Aq opportuqity presents itself f^ere for t^e irivestmerit of 
a few thousarid dollars, wliicli rarely offers in tf^ese parts, to a 
resporisible party posted ori this r^ew ligtjt. 

Do you kriow of sucfi a party ? 

Yours, etc., 

Wt^olesale ar\d Retail; Gerieral Hardware, Stoves, 
Queensware, M irking and Agricultural Implements. 

H. muoM. vict-ms. 


Sa-cmmc, Sept 21,1886. 

■ A. T. HARRISON & CO., 

Sacorro, N. m. 

Your letter of the I7tlq at l^and, asking about our electric 
ligflt We l^ave fjad our plant iri operatiori over two rrionths 
and have qot Ijad one complaint frorr) any of the consumers. It 
gives perfect satisfactiori since starting; there tjave beer] mer^ 
liere from rnany parts of the U. S., and they say witffout ex- 
ceptiori that they r^ever saw a better light and very few claim 
that t|iey fiave seeri its equal. We l^ave all of Edison’s 
latest improvemeqts, so that it is eveq better thaq iqany otl^er 
plants of the Edisoq Co. I consider the Edison light as much 
superior to gas, as gas- is superior to a tallow can^ ! 

For dwelling fiouses, villages and cities, or what is knowq 
as Central Station lighting, the Edisoq systerq is the only oqe 
tliat I consider of any use. I would qot l^ave any otfier systerq 
if they would put iq the plaqt aqd give it to rqe. Some of 
the otlier systenis do very well, for what is knowq as isolated 
liglqting; tl^at is, wl^ere tlie electric light plaqt is placed in a 
large building aqd tl^e wires qot ruq outside of ttie building; 

I think tlie.Edisoq,ligflt eveq better for tills. 

We fiear sorqe objections to the Edisoq Company for tfie 
reason that they require all local companies to give ttierq frorq 
25 to 30 per ceqt. of tfie stock) tfiis I consider oqe of the 
best features of tfie Edisoq Company, They give you the 
benefit of about 300 pateqts and of all inventions or irqprove- 
tqents they tqay qake or acquire by purchase without additional 
cost to your cotqpany. They (also sell you all electrical goods 

at 50 per cent, discount. 'They require you to render a 
rrionthly statement of your running expenses, so, if there are any 
abuses or tqismanagemeqt, they send a trian to your statioq 
to correct them. They, being- interested iq the local company, 
it is to their interest to do everything iq their power to see 
tf|at the business is conducted properly. ’ Should you organize 
a coiqpany, they will send you rqen to put iq your statioq, and 
ruq - it for you until tfiey caq teacfi oqe of your rqen to ruq it 
iq good shape. If you let then) know Ijow rqany lights you 
wisi] to furqish, they will give you tl^e cost and will contract 
to put iq the plant at their estimate. You will tqake a rqistake 
if you do qot contract wittj tljerq to put it iq at a stated price 
and turq it over to you iq running order. We hjave iq Laramie 
a populatioq of about five thousand people. Our statioq will 
run 1,600 lanjps of 16-caqdle power each aqd we are wired for ■ 
3,200, so we caq at any time increase our plant at a small 
expense. We qow liave orders ahead to wire fiouses to the 
.thjnk. that_withiq JSjrionths.vye 
shall have to put iq niachinery to carry what we are novv wired for, 
or 3,200 lamps of 16-candle power. In dwelling-houses only about 
one-half the lamps are used at a'tinqe, so wl^en I speak of ruqning 
1,600 lamps of 16-candle power, I mean the qumber we can ruq 
wheq they are all turned on; so we can put iq about 3,000 with¬ 
out any increase of power. We also use the Edison tqeter which 
is very accurate; we caq tell within i per cent, how much light 
is used by each coqsurqer’; this I think is much closer thaq you can 
rqeasure gas. I have referred your letter to the Edisoq Co., re¬ 
questing therq to give you further iqformation. Before doing 
aqything, I think it would pay you to corne here and see our plaqt 
and light, so that you may kqow of the general satisfaction it gives. 
We will take pleasure iq showing you arouqd aqd in giviqg you 
all the iqformatioq we caq. ' 

Very truly yours, 


President Uramie Electric Light Co. 

Edison Company for Isolated Lighting 

This folder contains printed material Issued by the Edison Company for 
Isolated Lighting. Organized in New York in November 1881, this company sold 
small generating plants for the lighting of individual buildings. It merged with the 
Edison Electric Light Company in 1886. 

The following items have been filmed; 

1. "Prices of Edison Incandescent Electric Light Apparatus ..." (1882) 

2. "The Edison Light" (1882) 

3. "The Edison System of Incandescent Electric Lighting" (1883) 

"Catalogue and Price List of Edison Light Fixtures Manufactured by Messrs. 
Bergmann & Co." (1883) [Bound with item #3.] 

5. Annual Report-(1884) 

6. "List of Edison Isolated Plants Installed Prior to October 1, 1885, in the 
United States" (1885) 







65 Fifth avenue, new York city. 

President, S. B. EATON. Secretary, C. GODDARD. 

Generai. Manaoer, M. F. MOORE. 

C. G. Burooyne, Printer, J 

In the following price-list the cost of the dynamo-electric machine, including regulating apparatus, 
extra brushes and the requisite number of lamps and sockets for “A” or “B ” lights, is constant, while 
the cost for fixtures and wiring is only approximate. The figures given, however, are drawn from ex- 
pciience in inatulimg our apparatus, which, taken aitogether, is spoken of as “piant.” 

The only depreciation on the dynamo machine is the natural wear of the journals, com¬ 
mutators and brushes, which with ordinary care does not exceed one per cent, per annum. The iamps 

at their normal candle power are guaranteed to have an average life of not less than fioo hours, but 

their actuai life has been found in practice to be much longer. The cost of new lamps is one 
doliar each. The Edison dynamo converts into electrical energy 95 per cent, of the mechanical energy or 
indicated horse power of the engine or other motive power, and the Edison System 0/ Lighting converts 
88 per cent, of such original mechanical energy into light. These results are far in e.scess of those 
attainable by any other known method of applying electricity to the production of iight. The economy 
and efficiency thus attained make the Edison System vastly cheaper than any other now known. 

We can at any time make accurate estimates of cost of installing a plant, requiring only a detailed 
plan of the building or buildings to be lighted. This plan should show the proposed location of the 
dynamo, the location and description of the machines to be lighted, also the total number of lamps 
required. An elevation should accompany this diagram, showing the height of ceilings. On completion 
of a plant we allow one of our men to remain for a reasonable period of time, at our expense, to instruct 
the purchaser in its use; It may be run by any workman of ordinary intelligence, and requires no more 
attention than could be given by any engineer without interfering with his regular duties. In our contracts 
abundant guarantee is given of the efficiency of the system, and we may add that we have entirely passed 
tht ^^per,mental stage of our enterprise, as may be evidenced by the large number of mills, factories, 
hotels, &c., in various parts of the country having our system in successful operation. 

Any further information may be obtained by application in writing or in person. 


6S Fifth Avenue, New York, September i, i88a. 


These ptices arc exclusive of counter-shaft, belt connections, and foundations. 



These prices are exclusive of counter-shaft, belt connections, and foundations. 




The Edison System 





The Edison System of Incandescent Electric Lighting, 

This pamphlet is issued by the Edison Company for Isolated 
Lighting, fortheinformation of manufacturers, hotelkeepers, steam¬ 
ship owners, theatrical managers and other usem of artificial light. 
It contains a brief description of the Edison system of lighting mills, 
hotels, steamships, theatres, &c., by means of isolated plants, that 
is to say, by apparatus which is owned, and controlled by the pur¬ 
chaser; also such information as to the detail of engines, dynamos, 
wiring, fixtures, &c., as will enable any person to estimate approxi¬ 
mately in regard to the cost and running expenses of a plant of a 
given capacity. 

The Edison Company for Isolated Lighting was organized in 
November, 1881, and, as a licensee of the Edison Electric Light Com¬ 
pany, is entitled to do business under the Edison patents for electric 
lighting. Of these patents, 210 have been already issued in the 
United States, including the patents securing to the Edison Com¬ 
pany the fundamental principles of incandescent lighting, and there 
are applications for 101 additional patents still pending in the Patent 
Office, which number is being constantly increased by Mr. Edison’s 
further inventions. These inventions form the complete system of 
Edison’s incandescent lighting now successfully inti-oduced into public 
use. • 

Since its organization, and up to this date, this Company has in¬ 
stalled in mills, factories, hotels, steamships, stores, residences, &o., 
in the United States, 109 isolated plants, aggregating upwards of 
44,786 lamps. 

There have also been installed by other Edison companies in 
England, on the Continent of Europe, and in various parts of the 
world, upwards of 158 plants, amounting to about 20,929 lamps, thus 
making the total number of Edison isolated plants in all parts of the 
world now amount to 357, with an aggregate of 71,715 lamps. 

These facts, although briefly stated, cannot fail to present to the 
mind of a business man the progress which has been made by this, 
an entirely new enterprise; but when we also state that 

1. We have never had a plant rejected; 

2. No fire or accident of any kind has ever occurred from the use 

of an Edison plant; and 

3. Many of our plants have been largely increased (see page 16), 
it is at once apparent that there are such substantial merits in the Edi¬ 
son system as merit the consideration of those who use artificial light. 


There are two systems of electric lighting, namely, the Arc and 
the Incandescent. The arc is a light of gi-eat intensity, concentrated 
in one small spot, constantly changing in color, and very trying to 
the eyes. It is commonly used in illuminating streets and large 
open spaces. The incandescent is a soft light, of the brightness of 
a good gas jet of the best quality, butivithout flicker, and is .espeoi- 
ally.adapted for domestic and industrial purposes. These two sys¬ 
tems of lighting are radically distinct, a fact which must be borne in 


mind when comparing the Edison incandescent system with the arc 


This lamp consists of a pear-shaped glass globe about -tj inches in 
length, exhausted of air, into which is sealed a filament of carbon¬ 
ized bamboo sh'ghtly thicker than a hori5e-hair. This filament, be¬ 
coming incandescent by the passage of the current of electricity 
through it, emits a beautiful, soft, white light, absolutely steady and 
constant, and equalling in intensity, or exceeding, if desired, the il¬ 
luminating power of a gas jet of the best quality. 

The lamp is screwed into a socket which is pei'manently attached 
to a gas or other chandelier or fixture, and contains a key whereby 
the light in the lamp may be turned on or off. The lamp, once 
screwed into the socket, needs no further attention or care until the 
carbon breaks, when the lamp is unscrewed from the socket, and a 
new one screwed in its place—the work of a few seconds. The lamps 
vary in the number of hours which they will bum, but their average 
life, at normal candle power, exceeds COO hours of actual burning. 

In practice, the lamps have an average life of much longer duration. 
The company, however, gives a wrilten guarantee to every purchaser 
of a plant that the average life of the lamp shall be at least GOO houra 
of bnrning at the candle power for which the lamp is rated. 

Each lamp is entirely independent of the others, and may be ar¬ 
ranged and controlled singly, in pairs, or in groups of any desired 
number, and may be placed in any position whatever, inverted or 

The lamps are made in various sizes, to give the light of 10, 10, 

32, 60, and 100 candles respectively. All these lamps may be burned 
upon the same circuit, that is to say, a plant may have all its lamps of 
the sflme candle power, or they may be varied at any time, up to the 
equivalent light-producing capacity of the dynamo, without chang¬ 
ing either the wiring, fixtures or dynamo. For instance, a 10 

candle lamp may be imscrewed from the socket and a 100 candle lamp 
put in its place, and so on, each lamp being interchangeable with any 
of the others throughout. The 10 candle lamp is, however, found 
to be the one which fills all ordinary requiroments,but there are num¬ 
erous cases where 10 candle lamps are found ample, especially where 
each workman requires a separate light immediately over his work. 

The Edison lamp gives out hut little heat (less than one-fifteenth 
as much as gas), may be grasped by the naked hand without incon¬ 
venience, is absolutely free from odor arid poisonous or noxious 
gaoeo, uiid neither heats nor vitiates the surrounding atmosphere. 

The most delicate of fabrics are not scorched or injured by being 
wrapped around the lamp when huruing at its normal intensity. 


The lamp does not explode, and even if the glass is broken by 
any accident, the carbon is instantly consumed and the light at 
once goes out harmlessly. 


Besides being unequalled for domestic and general illumination, 
the light is especially adapted to the workshop, inasmuch as by 
inverting the lamp, its whole light may be thrown on the work in 
hand, in any required position whatever. Attached to a flexible 
cord, the light may be placed under, over or inside of machines of 
every description, put under water, used in the midst of delicate 
or dangerous substances-and, in fact, applied as no other system of 
artificial lighting can possibly be. 


The light, although bright and clear, is not injurious to the eyes, • 
even if used close to them. ^ ’ 

---:- • * 1 


The Edison Inoandesobni’ L 
SoREWED IN Socket. 



The fixtures used for this lamp are of the same general character 
as those used for gas. A great variety of fixtures and attachments 
for the Edison light are manufactured by Messrs. Bergmann & Co., 
292 Avenue B, New York, whose catalogue will bo found at the end 
of this book. Special designs to suit peculiarities of decoration and 
finish of rooms can be made to oi’der if desired. 


The Edison dynamo supplying the current for the lamps consists 
of a powerful electro-magnet, between the poles of which an arma¬ 
ture or inducing coil revolves. The motive power may be either 
steam or water. 

It is not necessary to have a special engineer or electrician to inn 
this dynamo. On completion of a plant wo allow one of our men to 
remain for a reasonable period of time, at our expense, to instruct 
the purchaser in its use. It may be run by any workman of ordi- 
naiy intelligence, and requires no more attention than could be 
given by any engineer without interfeiing with his reguiar duties. 

Accompanying each dynamo is a regulator by which the inten¬ 
sity of the lights may be regulated at will. 


The current generated by the Edison dynamos never exceeds a 
certain intensity, or pressure, namely, the pressure exerted by the 
current in overcoming the resistance offered by the filament of car¬ 
bon in the lamp, the unit of such pressure being termed a “ volt.” 
The highest intensity reached by the current generated by our dyna¬ 
mos does not exceed 110 volts, no matter what the lamp capacity of 
the machine may be. This may seem a paradoxical statement to 
those unacquainted with electrical science, but inasmuch as the use 

of electric lights is becoming universal, a few words in explanation 
may not be out of place. 

Let us compare the arc light with the Edison incandescent light. 
In the former, there are two pencils of carbon, the points of which 
are opposite each other, but separated by a space of about quarter of 


conductor, or, as it is termed, in “series,” it follows that when 
there are a large number of lamps in circuit the pressure of tlie cur¬ 
rent must necessaiily he very great to drive it through all the lamps 
and then hack to the dynamo. The folloOTng diagram -svill illus¬ 
trate the manner of putting lamps in series: 


I j) _I_ -I ^ —e—1-^ 

It will, therefore, be seen, that in order to get to the second 
lamp the current must pass through the first, and so on, the electro¬ 
motive force being multiplied by the number of lamps in circuit. 
Thus, if a cm-rent of 60 volts pressure is needed to operate one arc 
light, it would necessitate an additional 50 volts for each additional 
lamp, so that with 40 arc lights in circuit, a current of 2,000 volts 
pressure would he required. 

Li the Edison system, however, the lamps are placed in “mul¬ 
tiple arc,” that is to say, both the outgoing and incoming ^vires are 
tapped and the lamp placed between, as shown in the following 


It is obvious, therefore, fi’om this sketch, that in our system it 
is not necessary for the current to pass through the fimt lamp in 
order to get to the second one, because each lamp oflEers to the current 
a path by which to cross over and re-enter the machine. It is also 
seen that all the lamps require only the same degi’ee of electrical press¬ 

ure to bring them up to incandescence, and, therefore, tlie pressure of 
the current is not multiplied according to the number of lamps. All 
the conductor are kept charged by the dynamo, with a certain quan¬ 
tity of electricity, but its intensity or pressure never varies. 

The effectwhichacurrentof electricity produces when applied to 
various substances, differs according to the resistance offered by such 
substances. The resistance offered by the carbon in the Edison lamp 
is 140 units, or “ ohms,” to overcome which, for the purpose of pro¬ 
ducing an ordinary light, is required a pressure of about 110 volts. The 
human body has a resistance of about 20,000 ohms which could bo over¬ 
come only by a current of very much higher pressure, consequently 
there is no danger to life, health or person, in the current generated 
by any of the Edison dynamos. The current is of such low pressure 
that the conductors at any part of the system, and even the poles 
of the dynamos themselves, may be grasped by the naked hand 
without the slightest effect; in fact, the current is scarcely percep¬ 
tible to the touch. 


Besides the safety from injury to the person, another prominent 
featm'e of the system is its freedom from danger of fii-e. This is 
secured by means of a small automatic device invented by Mr. 
Edison, called the “Out-out” or “Safety-catch,” which may be com¬ 
pared to an overfiow-pipe in a water system, or a safety valve on a 
steam boiler. This safety-catch consists of a small piece of lead wire 
fusible at a low tempei-ature, placed in each branch circuit. As was 
stated above, the lamp offei-s a resistance proportioned to the pres¬ 
sure of the current generated. It will readily be understood, there¬ 
fore, that if a conductor of less resistance be interposed across the 
circuit, the current would rush to this spot, because it would afford 
an easier passage than through the lamps. Such a low resistance 
would be offered if the oonductow wei-e brought together by any acci¬ 
dent; and, in the absence of a safety device, the consequence would 


be the melting of the wires and possible danger of setting Are there¬ 
by to any adjacent inflammable material. It is to provide against 
this danger that the safety-catch is placed in the path of the current. 
The fusing point of the lead wire in the safety-catch is between 450 
and 500 degrees Fahrenheit, while it requires about 2,143 degi'ees to 
melt copper of proportionate size. The safety wire is placed in a 
closed receptacle which is screwed into the place designed for it, in 
the same manner as a lamp. 
If, therefore, the wires should 
become overcharged from any 
cause, this safety-catch would 
at once melt off harmlessly 
and open the circuit, thus pre¬ 
venting the flow of current 
and averting all possible dan¬ 
ger from fire. The circuit can 
be again closed by taking out 
the safety-plug and putting in 
a new one—the work of a mo- 

Under the Edison system, 
fires are impossible. Not only 
thoroughly insu¬ 
lated, and also, when necessary, protected by mouldings, but the 
“ cut-out ” is so introduced in the path of the conductor that fire from 
the source above-named, or from any source whatever, is absolutely 
impossible. The lamp is now in geneml use in factories, dwellings, 
theatres, steamships, &c., yet no fire has ever taken place from the 
Edison system. 


The light, besides being available for dwellings and factories, is 
also especially adapted to the lighting of steamboats. The cleanli¬ 

ness, absence of disagreeable odor, ventilation, freedom from danger 
by fire, and economy, make the light better for steamboats than any 
other known illuminant. The lamp lias also been found of the 
gi'eatest value for the examination of the parts of a vessel under ivater. 


The lamp is also used for lighting mines. Mr. Edison has in¬ 
vented devices for protecting the lamp from breakage, even from 
the roughest handling, and for making the light absolutely safe from 
explosion or fire, even if breakage should take place in the presence 
of fire-damp. 


The Edison system supplies poiver as well as light. By the use 
of the dynamo, power may be transferred from a source of power to 
distant points for use, or from one portion of a factory to another. 
This invention affords not only the cheapest method, in many cases, 
of transferring power, but also facilities for minute sub-division 
and complete control. 

Among the many uses made of the electric power are the 
following: the running of lathes, printing-presses, sewing machines, 
other small machines, elevatore, and pumps. 


The Edison system for lighting large cities is modeled on the 
existing gas system. The current is generated at a central point, is 
distributed through conductore laid under the streets, connections 
are made with houses by means of branch conductors, and the cur¬ 
rent thus diverted, after passing through a meter, wliich registera 
with perfect accuracy the quantity qonsumed, is distributed through 
the house for use either for light or power. Houses are so wired 


safe from 
I presence 

By tlie use 
f power to 
0 another. 


0(1 on the 
il point, is 

K registeis 

that not only is light supplied, but, by means of an electric motor, 
power is also furnished for any purpose. 

A out of the standard Edison dynamo used in largo central 
station systems is shown on the preceding page. This machine will 
generate current for 1,200 sixteen candle-power lamps. 


The economy of the Edison incandescent light, as compared with 
gas, is beyond question, no matter whether the gas is obtained 
through the ordinary distribution system, as in cities, or is manu¬ 
factured on the premises of the consumer by a portable gas machine. 
In estimating on the subject of economy there are many important 
elements to be considered, among which are the effective light 
obtained, the difference in cost of steam and water power, the num¬ 
ber of hours per year during which the light is used, &o., &c. 
Again, in comparing our light with gas, the fact should ho taken 
into consideration that the illuminating power of gas varies in dif¬ 
ferent localities. The 5-foot gas burner does not ordinarily give a 
light equal to 12 candle power, so, in order to obtain the same 
amount of light as that given by the Edison standard lamp (10 candle 
power), a li-foot gas burner must he used. Even then the whole 
light of the gas burner cannot bo utilized, because it can neither bo 
inverted nor entirely backed up by a shade, while, on the other hand, 
the whole candle power of the Edison lamp is effective, inasmuch as 
it may he inverted or otherwise directed to any desired spot. 

The items which enter into the cost of running a plant, in a cot¬ 
ton miU for instance, are as follows, viz.: 

1. Cost of coal for generation of steam, or rent of water power. 

2. Depreciation on machine. 

3. Eenewal of lamps. 

i. Oil, waste, &c. 

The first item needs little comment from us, the cost of power 
being familiar to every manufacturer. We should say, however. 

that we have learned from several of those who are using largo 
Edison plants, that they do not consume any more coal than they 
did before using our dynamos. Tins would appear to be a startling 
statement, but we believe from the information we have obtained, 
that it is nevertheless correct. This statement relates to those mills 
where they do not work nights, and where artificial light is only 
used from 300 to COO hours per year. In this case the firemen do not 
put any coal on their fires for some time previous to shutting down 
in the evening, and it is during this time that the light is required. 
Consequently no additional coal is required for the steam used to 
drive the dynamos. 

A very important item relating to the cost of power for our 
machines is their efficiency in the conversion of steam into electrical 
energy. From tests made at the Stevens Institute of Technology 
by Mr. John W. Howell, it is found that the Edison dynamo con¬ 
verts into electrical energy OS per vent, of the mechanical energy or 
indicated hoi-so power of the engine or other motive power, and the 
Edison System of Lighting converts SS per cent, of such original 
mechanical energy jnfo light. (See text of Mr. Howell’s report, also 
of report of Professoi-s Brackett and Young, page 22.) The above 
results are far in excess of those attainable by any other known 
method of applying electricity to the production of light. The 
economy and efficiency thus attained make the Edison system vastly 
cheaper than any other now known. We give a written guarantee 
that our dynamos will furnish current to light at least six standard 
10 candle lamps for every horse-power indicated by the steam engine 
di-iving such dynamos. 

The only depreciation on the dynamo machine is the natural 
wear of the journals and boxes, commutator, and brushes, the total 
of which with ordinary care does not exceed one per cent, per an- 
mm. The lamps at their normal candle power are guaranteed to 
have an average life of not less than 000 hours, but their actual life 
has been found in practice to he much longer. In some oases, where' 
power was abundant, it has been found by purchasers of Our plants 



that by runninp; our lamps very sljghtly below their normal candle 
power and adding a few extra lamps to make up the total amount of 
light required, the average life of the lamps has exceeded 1,S00 hours 
of actual burning. The lamps cost one dollar each. No expense 
for extra labor is necessary, except in the case of a very large plant, 
say, over 1,000 lights, and even then a part only of one man’s time 
need be occupied. 

This question of the economy of the Edison light has received so 
much attention from the purchasers of our plants, that we present 
the statements of a few of them below : 

The following is copied from the Boston Cotton, Wool and Iron; 

*.* In nnswer to nn iuqiiirj' ns to ilie result of the iiilroductlon of the Edison system 

Nkw Bkdfoku. jr.xss., Nov. 10,1882. 

Editor Cotton, Wool iiml Iron: 

Tlio Edison system of electric lightinp wiis introduced into our No. 0 mill, Sept. 14, 
1883, and 1ms been in constant use ever since that date, lighting the entire mill. Ttie plant 
coat about $12,000, and consists of three K dynamos, so called, each of the capacity of 230 
A lights of 10 candle power each, making a total of 750 liglits. The lights are so arranged 
that one will light four looms, giving nn efpml amount of light to each loom. "We formerly 
used Uvo four-foot gas humors for the same purpose. In other parts of the mill the arnuigc- 
ment is such that one lamp lights about the same space ns two four-foot gas burners. The 

it is as cheap ns gas at $1 per 1,000 feet; there Is no smoke or heat from it; it is safer than 

use it. if it cost more than gas. The dynamos arc operated by one of our machinists, re¬ 
quiring but a small portion of his time, say an hour and a half per day for the year. The 
power required is, by actual test, ono-horso power for 8.0 lights of 10 candle power each. 
The lamps are guaranteed to Inst 000 hours; and, as a well constructed mill requires light 
but about nn hour per d(iy, or 800 hours per year, the lamps would last two years. The cost 
for power, taken in connection with the power to drive our mills, is very light, nt the night 
end of the day. SVo are unable to dctcct.Any increase In the cohsumptlou of coni; but the 
llres are probably burned n little lower; therefore, from this data, I should compute the 

cost of lighting our mill, which contains 51,000 spindles and 1,073 forty inch looms, as 

follows, putting the power at $00 per year per horse power: 

87 horao power for 800 hours at $30...$201 

875 lamps nt $1 each...875 

Labor operating dynamos.^.'..... 00 $720 

Interest and wear and tear on plant at 8 per cent. 000 

The total cost of electrio light. $1,080 

To light with gas would require 1,200 four-foot burners, which would consume 
1,440,000 feet of gas in the 800 hours. 

1,440,000 fcctgjis at $1 per thousand foot...$1,440 

Interest, etc., on cost of piping mill, at 8 per cent. 820 

Total cost of gas. $1,700 

Deduct cost of electric light. 1,080 

Leaving. $74 

Showing $74 in favor of electric light with gas at $1 per thousand feet. 

Yours, respectfully, 

Edwaiid KiLimiiK, Agent.” 

TIig following extract is from the Holyoke Transcript^ October 
28tb, 1SS2: 

“At a meeting of the Slamifaclurcrs JIutuul Insurance Co., held in Boston, last 
■Wednesday, Jir. Charles J. II. Woodbury, a mechanical engineer of much prominence, 
who is retained ns nn expert by that company, rend nn exhaustive paper on electric light¬ 
ing, a portion of which is of mucii local Interest. 

3Ir. Timothy Jlerrick, of this city, nuthori::cs liim to give the facts respecting his 
expel 5cnc» with the Eilison System in the Idcrrlck Tiirend Company’s mill No. 8. .This 
mill runs nil night, five nights in tlio week for 51 weeks per year, using light 2,809 liours 
per annum. It was lighted by 05 burners with city gas, costing $3.18 net, which amounted 
to $225 per montli. Ninety-five Edison B burners (eight candle power) were substituted for 
the gas. In tlio first 1,000 hours five Inmp-cnrhons liad broken, and October 20 they had 
been in uso 1,278 hours, and eleven Imd broken. 


100 lamps at $1.00.$100 00 

Interest and doprcchitlou.168 DO 

0 horso power nt $10.00.. 00 00 

Annual cost of Edison light.$408 50 

Monthly “ “ *' . 88 03 ' 

^Inntbly cost of gas. 325 00 


Tho rcauUs from thcso lamps i 

would h V b I ^ ^ aaiisiaciory, and certainly in excess of wbat 

TlioHoIyoko Water Power Company furnlshea watopowM verreherp^yf Ind the 
resnlt may be interesting it wo bold tbe Edison Company to tbelr ml.dmum gnarantee, and 
also elmrge the dynamo wltli four pounds of eoal per bonrly liorao power- 

4.78-100 renewals of 0.7 lamiis, equals 454 lamps at Jll.OO. $454 oo 

Interest and depreelation. 153 50 

80.74 tons of coal, at ?5.75. gj 

Annual eost of Edison light. *784 M 

Annual eost of gas . „ gg 

Montlily cost of Edison llglit. gg 

wbicli is equal to gns nt 05 cents per thousand. 

‘ Tbe mill is situated.' says Jfr. Woodbuo', 'at tbe base of a bigb bauk and is only 
eleven feet, six inebes between floors, solt is very bot in summer, and Mr. Merriek informed 
ino'that it would hnvo been impossible to run the mill nights during the extrcmcl hot sen 
sm last summer it tbe kelp bad been subjeeted to tbe beat and vitiated llTromTli burning 

Speaking of improvements Mr. Woodbury says 'tbat tbeywill eertaiuly eome, but 
will probably refer to attaebmeuts rattier Ilian to tbe more permanent portions of tbe plant 
as tbe maeblnes already deliver 80 or 00 per cent, of tbe motive power into electrieity upon 

i!‘es ZanlaUy tie Mill M«lual’ln«rn‘'‘"c’”‘ >’""- 

rrtn7ur7tlZsrbl?veTr I'l'l* ro7th-eral7ted7lm!no“fl7 

The folloiving extracts are from a letter written by -Mr F E 
Clarke, in reply to an inquiiy as to the efficiency anti economy of 
the Edison plant in the Pemberton Mill, Laivrence, Mass.: 

“We put in one Z dynamo. 05 A or 120 B liglits, in October, 1881, and at first tried 
die 120 B Hgbts Willi it, llgliling 120 looms, willi one liglit to a loom. From wliat I saw in 

IVlIli these A lamps wo llgliicd 180 looms. Tbe many advnnlagesof ilieligbt.romoof 
iVhicU were—■olmost perfect condition of tlio ntmospliuro when using no gas jots discrimln 
itlon of colors, little iraperfccllons in weaving remedied more quickly by tli'o weaver a 

Tbeso were all in operation early in November, 1882, and bavo been 
since. After a w-cek’s use I bad taken out of tbe two rooms all of tlio gi 

casloucd among tlio liclp. Tbe electric mLdnes arc driven b7tlIo°rcg' 
mill (water wlieels), and once in a wliilo a sliort slop is necessary from som 
orlargobclt, etc.; lienee, tbe few gas jets spoken of above 'llic operatii 
and liglits tbroiigb tlio mill tbus for bave been very satisfactory. Wo m 
largely. Our weave rooms ore wide, and in dark days, and in fact m 
ovory day we liave used a part of tbe liglits all day. Tlio difference i 

tlio evening, wlicn all liglited, tbe air is as pure to tbe lienltli and siglit 

rays, make it very pleasant, and I am able to wl^amrrelrM long 
liny inconvenience to my eyes. * * * 

Now for comparativo economy of gas and electricity. 

We bave 805 A lights. 


802 gas Jets, ten Hours, 4 feel per lioiir. gives 14,480 feet gas. 14 

21.05 per tliousaud.-»23.80 dady east „/y„„o oblaln a poorer light 
Elcetrio plant cost entire. $0,825.00. 

12 per eenl. of $0,825.00 forlnterest and depreciation, one dav 
Power elglit-tentbs of one cent per II. P. per Hour, for 181 ligl,' 

iivnnJ?! followingletterfi 

iiient Philadelphia firm of hat manufacturers • 


a OO-IIglit dynamo, and sliorlly after added a second one. After nyear’s trial we concluded 
to llglit our whole ostnblisliment with it. nnd therefore increased our plant this winter to 
five hundred (500) iamps, of sixteen candle power each. The plant for tills consisting of two 
Edison dynamos, of two iiundred ond fifty(S50) lomps each, nnd a suitoble stcom engine for 
driving them was furnished by you; nnd it gives us pleasure to acknowledge your care In 
fulfilling every obligation that you Imd entered into in setting up this electrical equipment. 
Our whole establishment is now llglited by electricity, ns wo have found tlio light to bo 
bright, nnd steady to work by on our darkest goods ; pleasant to tlio eyesight, free from 
danger by fire, nnd from our Into tests wo find it to cost us, ns near ns we can calculate, 
88 per cent, of whnt gns would cost us nt fl.OO per, 1,000 ft. 

Very respectfully yours, 


The following testimonial is from another well known Phila¬ 
delphia firm: 

Total cost gns light supplanted.$5,007 85 

" “ .Eloetrlo Light.... 1,181 gg 

Net swino .$8,085 07 

Comparative cost of gns light to the Electric nearly ns 5 to 1. 

Trusting you will find our method of cnlculntlon a reasonably practical one, wo arc. 
Yours truly, 


•One other item should, wo think, be added to this letter, namely, dcprccintlon on 
plant. The total cost of the plant was $10,000.40, including nn independent engine. A 
very largo part of this amount, however, covers wiring, fixtures, Ac., which do not de- 
precinlo, leaving only tlio active parts of the plant upon which this expense will fall. If, 
therefore, wo charge ourselves with 8 per cent. ($120.07) for four months on the total cost 

light, of $8,815.00. 

Edison Co. for Isolated Lighting, Boom 0, Ledger Building, Phiindn.; 

our mill by the Edlsnu Incandescent System, we submit the following; 

Number of hours plant lighted since insinllnliou of first Dynamo.1502 

Average /lourty consumption of gns before introducing Edison Light. .2,1701 feet 

Or, for 1,502 hours, 1,502 X 2,170} ft, —8,800,008 feet, co8tlng8,800 VW's X $1.00.S0,400 41 

Actual cost of gns used In addition to Electric Light. 1.891 bq 

Actual value of gns light supplanted by Elcctriolty.$5,007 85 

Our expenses for the Electric Light to supplant this have been ns follows, viz.; 

For Installation of Light, Including nil expenses of every kind, and 
Lawrence engine for driving. $12,000 40 

4 months' Interest on same @ 0 . $049 jg 

01} tons coni @ $8.25. 207 87 

Oil used. 93 48 

Lamps destroyed. 448. 448 00 

Repairing armature... . 47 qj 

We have letters from othere touching the economy of the sys¬ 
tem, but think that those above given will be sufficient to stimulate 
Interested enquirers to make further investigation of the facts. Other 
letters on this point, as well as on the general efficiency of the sys¬ 
tem, will he found among the testimonials in another part of this book. 

While on this subject of the cost of the light and its economy, it 
will be found interesting to examine the following tables, showing 
the cost of production of the light, which have been prepared by us 
from data obtained by actual experience. 




400 7Hoot biirnei-s^ M feet ] 
Coat of Edison Light ns above 

' hmir—$0.75 per hour. 

As wil] be seen from the foregoing tables, the comparative cost of 
the electric light becomes less as the number of houre of annual con¬ 
sumption increases, for the'reason that the item of interest remains 
constant. Purthermpre, this estimate of running expenses is based 
upon the assumption that the lamps will last only COO hours, whereas 
it has been found in practice that they very much exceed our guar¬ 
antee, which materially diminishes the cost of producing the light. 
It should also be borne in mind that an Edison sixteen-candle lamp 
will give, in practice, the same light as that obtained from an or¬ 
dinary gas burner consuming feet of gas per hour. The effective 
illumination of our lamp, in comparison with a gas jet of equal 
power, is 26 per cent, gi-eater, oiving to the facility of throiving 
the light where it is wanted. 

We also give, on page 19, an estimate of cost of operating Edi¬ 
son plants, as compared with gas and arc lights, prepared' by Mr. 
Sidney B. Paine, of our New England department. 


When to the pecuniaiy economy is added the healthfulness of 
thelightascompared with gas, its freedom from odor andfrom danger 
by lire; its steadiness, adaptability, completeness and beauty, there 
can be no doubt that the Edison light is unsm-passed by any other 
method of artificial lighting whatever. 

There is abundant evidence qj the satisfaction given by the Edi¬ 
son system! of lighting, introduced, as 

seen from an examination of some of the testimonials we have re¬ 
ceived, whioli will be found in another part of this pamphlet. Apart 
from these, however, the most giutifying evidence of the merits of 
the system is the fact that a large number of our plants have been 
increased by purchasers, after trial. A partial list of these plants in¬ 
creased by purchasers, after trial, is given below : 


r .sei^sa 

P f TV T 

Pcmborloii Comimnv. 

Lawrenee, Hass. 




Now Bedford, Mass... 



Weed, Persons* Co 

Albany, N. Y. . 


Snyles & Washburn_ 

Jlccbanlcsvlllo, Conn. 



Norton, Brother* Co. 

Buffalo, N. Y... 



Sibley Jlanufueturlng Co. 

Piss, Bnnes & Erbcn. 

Augusta, Georgia. 

Flillndclnhin. Pn . 



Baltimore A’un. 

Worumbo Mnnufneturlng Co 

Baltimore, Md. 



J. B. Stetson * Co. 

Phlladelphln' p". 



Enstmnn Dry Plato Co.■. 

Roebester, N. Y.. 



Slngnslns du Bon Mnrelie. 

R. Loellel * Co. 

Paris, Franco. 





Alsace, Lorraine R. R. Co_ 




Flulnyson & Co. 



■ 1,200 

Waterloo R.R, Station..... 

Londor England 



Old Kentucky Woolen JIllls. . -. 

D. Golt * Soils 

Loitlsvlllo. Kv_ 




Boston ITemlil .. 

Pawtucket, R. I 

Boston, Mass. 





In addition to tlie above the two following increases are especially 

(1) Messia. Seymour, Sabin ,& Co., Stillwater, Minn., and the 
Merrimao Manufacturing Co., Lowell, Mass., each increased the 
dynamo capacity of their plants from 250 eight-candle lamps to an 
equal number of sixteen-candle power lamps. 

(2) Messrs. H. K. & F. B. Thui-ber & Co,, New York City, have 
twice increased their plant. The fii-st installation was of CO lamps, 
which was increased to lIO, and again to 250 lamps. 


The wiring of buildings is done by experienced workmen, with 
none but first-class material. All wires are doubly insulated, and, 
in most cases, protected by wooden monldings, as shown in the fol¬ 
lowing cut: 

The above out shows the main and branch lines, the safety-catch 
being inserted in the latter. In tho out one part of the wooden 
moulding is shown ns being slipped from over the wires, to illustrate 
the fact that they are kept a proper distance from each other in 
accordance with insurance regulations. In largo plants where heavy 
conductoi-s are required, wo use for the mainlines the Edison patented 
conduotoi-s, which are enclosed in an iron tube filled with an insulat¬ 
ing compound. These tubular conductors are shown in the cut below: 


Wo can at any time make accurate estimates of cost of installing 
a plant, requiring only a detailed plan of the building or buildings 
to bo lighted. This plan should show the proposed location of tho 
dynamo, the location and description of tho rooms and machines to 
be lighted, also the total number of lamps required. An elevation, 
showing the height of ceilings, should accompany this diagram. 

All installations are made with great care, and under the rules 
and regulations laid down by tho New York Board of Fire Under¬ 
writers. It is only just to ourselves to state that we have in all cases 
taken particular pains to install our plants in strict accordance with 
such rules, and that in no case has a permit to use the Edison light 
been refused by the insurance companies, with whom our relations 
have been most satisfactory and agreeable. The indications tend, we 
believe, very generally towards the opinion that the use of our system 
is for all purposes attended with a far greater degree of safety than 
where gas or kerosene is used. 



Tho cost of each dynamo, which includes lamps aijd sockets, as 
well as a hand regulator, is a constant, the cost of wiring, fixtees 
and otlier accessories to complete the plant depending upon the num¬ 
ber, disposition and grouping of tho lamps and upon the quality of 
fixtures required. • A price list is given on page CO, from which it 
will bo easy for any person to make an approximate estimate of the 
cost of any capacity of plant required. 


Where a special engine is required to run the dynamo, we can 
supply one peculiarly adapted for the purpose. 

This engine is built by the Armington & Sims Co., Providence, 
R. I., and has been modified in accordance with the suggestions of 
Mr. Edison and the engineering department of this company. We 
have supplied a large number of these engines in connection with 
some of our plants, and they have never failed to do their work per¬ 
fectly and with entire satisfaction to the customer. 

On page 63 and those following we present cuts of these engines 
together with tables showing the dimensions, powem, and speed of 
the same. 

We also present, on tho pages following the above, a series of 
diagi-ams giving tho dimensions, &o., of foundations required for 
engines and dynamos, which will be of use to those contemplating 
I the purchase of a plant. 


Mr. Sidney B. Paine, connected with the New England Depart¬ 
ment of the Edison Company at Boston, has recently prepared a valu¬ 
able paper on the cost of the Edison system of incandescent lighting, 
compared with arc lights and gas in factories. His paper, printed in 
the Cotton, Wool and Boston, April 14th, is copied below : 

'*Wc publish below, us nearly us wo cun uscurtulu. the uhsolute Tucts of the cost ns 
between the urenud incnndcsccnt systems of Hi$htlng. 'NVebuliovo it will be of interest to 
nmnufuctui'crs, and it will bo seen that tlio dntu given is intended to bo h'om tlie stand* 
point of ubaolule accounts whlcli have been vorlfied by manufucluring concerns. 

Tills estimate Is based upon tiio requirements of a weave shop containing 1,000 forty- 
inch looms iimnufacluring white shirtings. To light this room properly will require >10 

to four looms). This distribution of the light is thc^oiio which 1ms been found, in actual 
pnictlco, to give equal result. 

The estimate on tlie running expenses of tlio arc S3’stcm is bused upon a statement 
made by Col. Thomas Livermore, before the Now England Cotton Hanufnctiircrs' Associa¬ 
tion, in October, 1883. This gentleman is using 404 arc lights (about half being Erusli, 
and onc-hnlf 'Weston) in tlio Amoskeag Mills, in Mnncliester, and 1ms kept very accurate 
accounts of the expenditure entailed by these systems. The estimate upon the running 
expenses of the Edison system is also bused upon actual practice. From this experience 
the Edison Company has made full guarantees, thus protecting the manufacturer. As the 
Edison Company has protected itself in making these guarantees, the inanufactnrer will 
realize better resulfs than those given below. These latter expenses arc therefore the max- 

This plant, as the Brush Company, will cost $7,000, including wiring. Tlie 
power required will bo 42 horse-power, which at l^Vif cents per horse-power per hour ($50 
per horse-power per year), will cost 70 cents per hour. 

The “labor, carbons, and repairs," at 3^ cents per lamp per hour, will cost $1.21 

This plant, ns installed by the Edison Company', will cost about $4,000, including 
wiring. The “power" required will not exceed 85 horse-power, which, at cents per 
horse-power per hour, will cost 68 cents per hour. The “lamps and brushes.” estimating 
that the Edison Company is called upon to make good its guarantees of an average life of 
UOO hours for the lamps (renewal $1 each) and of 2T)0 hours for the brushes ($10 per 
set), will cost 47 cents per hour. The “ depreciation " of the Edison system, assuming that 
the Edison Company is required to make good Us guarantee of 1,600 houre’ life for the 
“commutator" (renewal $50), will amount to three (8) cents per hour. There is no cost for 
“ labor” connected with the Edison system, other than that included In the charge of 
cents per horse-power per hour, inasmuch as the ilyimmo can bo placed In the engine room, 
and the engineer can pay It all the necessary attention without Interfering with his legiti¬ 
mate work. This charge (l“i,^ cents per horse-power per hour) is extremely high. It 

covers nil labor of cugluccr and nremun, fuel, water, oil, waste 
interest, taxe.s and insurance on steam plant, consisting of engin 
boilers, piping-stack, engine and boiler-house. These charges. In i 
ought to bo covered by $40 per horse-power. While this basis ii 
poses of the present comparison (ns both s^'stems are brought t 
evidently improper to adopt It In comparing either of the above s; 
unless such other lie ilrst brought to the same level. 

Tabulating the comparative estimates given above, wo have 
■ expenses (exclusive of interest) for lighting the above room for one 1 

and all depreciation, 
, foundations, heater, 
i ordinary equipment. 

Hourly expense, exclusive of interest. $1.09 $1.08 

To light the above room with gas would require 600 4-foot burners. Tlio piping for 
tho above number of burners would cost, at iiio lowest osiimaio, $1,500. These burners 
would consume 2,000 feet per hour, which, at $1.00 per thousand, will cost $8.20 
per hour. 


Eepokt of comparison between the Phony and Edison Dynamometers, and upon the efficiency of the Edison Dynajio-electrio 
Machine, by Professors C. E. Brackett and 0. A. Young, of the College of New Jersey, Princeton, N. J. 

Experiments made April 3, 1880. 

First Comparison Between the Dynamometers. 

The lever arm of the Proiiy was held down by the action of a 
spring balance applied at division 12, corresponding to a virtual cir¬ 
cumference of 12 feet. The weight of the balance was 5.41 pounds, 
which is to he added to all its readings. The balance was read by Mr. 
Upton. After the experiment, the Edison dynamometer, transmit¬ 
ting no work, as read by Prof. Brackett, indicated (the mean of five 
readings, ranging from 900 to 995) 994.2 pounds. During the experi¬ 
ment the readings were made by Prof. Brackett and recorded by 
Prof. Young. 

Duration of test, 10 minutes. 

Number of revolutions of Prony shaft, determined by counter, 

Number of revolutions of main shaft, 1,880. 

Mean indication of Edison dynamometer, deduced from Prof. 
Brackett’s ten readings, varying from 920 pounds at beginning to 935 
at end of experiment, 926.7 pounds. 

From this, taking the mean reading of the zero, 994.2 pounds, we 
have ‘ — 34.26 pounds. 

Mean tension on Prony arm, 9.011 pounds, varying gradually 

from 10.91 pounds at beginning to 7.00 pounds at end of experiment, 
including weight of scale. 

Work registered by Prony, 9.011 (lb.) X 12 (ft.) X 5.004 (rev.) 
— 012,460 ft. lb. 

The diameter of main pulley is 38 inches. 

The angle between belts of Edison dynamometer is taken at 44°. 
Assume K -(x sec. 22° Xj|)- 10.7297. Then the Edison dyna¬ 
mometer registered IC (ft.) X 1880 (rev.) X 34.25 (lb.) = 090,880 ft. 
lb. That is, the Prony recorded 88.0 per cent, of the work carried by 
the Edison dynamometer. 

The comparison does not seem to us satisfactory on account of the 
considerable change in the conditions during the experiment. 

Second Comparison. 

Constants and observers as before. 

Duration of test, 4 minutes. 

Number revolutions of Prony, 2,281. 

Number revolutions of main shaft, 762. 

Mean tension on arm of Prony, 11.85 lb., varying from 11.00 to 
10.97 in seven readings. 

Initial reading of Edison dynamometer (mean of five), 004.2. 


Pinal reading of Edison dynamometer (mean of five), 004.2. 

Mean during comparison, 011.67. 

(Mean of seven readings, varying from 010 to 016 lb.) 

. Work according to Prony, 11.85 (lb.) X 12 (ft.) X 2,281 (rev.) - 
810,080 ft. lb. 

Work according to Edison instrument, K (ft.) X 752 X 

( 004.2-91 .^j„ 383^800 ft. lb. 

In this comparison the Prony register's 93.2 per cent, of ■\vork 
indicated by the Edison dynamometer. 

We regard this test as fairly reliable, the conditions having been 
very constant, and the outstanding difference of 0.8 per cent, being 
reasonably accounted for by slip of belts and friction of journals 
between the two dynamometers. 

Tests op the EpprciENcy op the Dynasio-Eleotrio Macihne. 

During both these tests the thermometer of the calorimeter and 
the Edison dynamometer were read as often as every minute, and 
great pains were taken to keep the water thoroughly stirred. The 
calorimeter was a galvanized iron vessel, 10.42 inches in diameter and 
24J deep. 

The wire coil was wound upon a light wooden frame, so con¬ 
structed as to serve as a very efficient stirrer. 

The thermometer was an excellent instrument, by James Green, 
graduated to fifths of a Fahrenheit degree, each degree being about 
three-sixteenths of an inch in length. 

Prof. Brackett read the dynamometer. 

Prof. Young read the thermometer and made the records. 

Mr. Upton and others, the speed of the main shaft and the indi¬ 
cations of the high resistance galvanometer in the laboratory. 


Weight of calorimeter (empty). 22.63 lb. 

Heat capacity of same (taking specific heat at 0.112). 2.63 lb. 

Weight of wooden frame. 6.71 lb. 

Heat capacity of frame (s. taken at 0.80)... 1.71 water lb. 

Weight of wire coil (64^ turns, each turn weighing 

6.84 gi'ammes). 0.701b. 

Heat capacity of wire (s., 0.10). 0.07 water lb. 

Resistance of coil in calorimeter. 1.720 ohms. 

Eesistance of leading wires taken as yjir of coil. 0,0057 ohm. 

Eesistance of wire on revolving armature. 0.140 ohm. 

Eesistance of coil on field magnets. 1.470 ohms. 

Total weight of calorimeter with contained water and 

everything in jdace .197.6 lb. 

Hence from preceding data the heat capacity of whole. 172.77 water lb. 

Temperature of air... '12.2° 

Temperature of water at beginning. 63.8° 

Temperature of water at end. 80.5° 

Gain during experiment.•_••• 10-'1° 

Duration of experiment.13m. 30s. 13.83i m. 

Dynamometer at beginning (free)...994.2 

Dynamometer at end (free). 995. 

Mean dynamometer zero.994.6 

Speed of main shaft, beginning. 

Speed of n 

shaft, end. l'^9 

Mean reading of dynamometer during experiment.. .771.75 lb. 
(Varying from 760 to 781, 16 readings). 

E. M. F. of current maintaining field was 61 divs. of galvano¬ 
meter, on which 158 d. corresponded to 16 Daniell cells, t. e., 

E. M. F. = ^ X 16 X 1.079 volts. 

Energy expended on driving armature, as indicated by dynamo¬ 
meter -K (ft.) X 172 (rev.) X,13.833i (min.) X ( 

»-2,844,600 foot pounds. 

Energy expended on field of force, ^ (ohms.) Xl3.883(m.) 

X X 10 X 1.079)’ — 19,034 foot pounds. 

Hence, total energy expended, 2,864,284 foot pounds. 



Total energy realized..., 
Total available (a + 6).. 

Total efficiency. 

Total available. 

Mean reading of dynamometer during the experiment 

(9 readings, between (145 and 000).05( 

Electromotive' force of field(by high resistance galvan- 

E. M. P. of dynamo current ■=■ ^ 
E. M. F. of terminals of dynani 

During this tost the driving power was about 0| horse power; the 
electromotive force of the field current, 0.27 volts, giving a current 
through the magnet wires of about 4-)- wobers; and the curi'ent de¬ 
veloped by tbe machine was about 45. S webors through a total re¬ 
sistance of l.SOO ohms. 

Duration of experiment. 

Speed of main shaft, beginning.. 

Speed of main shaft, middle. 

Speed of main shaft, end . 


Dynamometer reading before experiment. 
Dynamometer reading after experiment.. 
Jloan dynamometer zero. 

h. In maintenance of field of for 



Total energy expended. 

a. In calorimeter, 772 X 175.27 

b. In leading wires of above 

c. In armature of a .. 

Total energy realized (a + 6 -f c)_ 

Available (outside of machine) \a + b).. 

Total efficiency. 

Available efficiency... 

As a check we may compute the total efficiency from the galvan¬ 
ometer reading and the resistance: Energy developed, 44.26 (ft. lb.) 
X 0 (m.) X .101.66 (volts) X 1,800 (ohms)—2,200,600 ft. lb. 


• The disoi'epanoy is fairly explained by the defective insulation of 
long wires leading to the galvanometer, as it was raining at the 

During the experiment the driving power was about house 
power, and the current was 57.i webers (according to galvanometer, 

Even witli this current the spark at the commutator was veiy 


Total Efficiency. Available Efficiency. 

According to first test.84.5 p. c. 78.2 p. c. 

According to second test... ._84.5 p. c. 78.2 p. c. 

The Prony dynamometer is connected to the Edison dynamome¬ 
ter by a belt from the same countershaft, which is also bolted to the 
electric generators. If we should assume the con-eotness of the 
Prony, and that the loss in the transmitting power between the 
Edison dynamometer and the arbor of the armature was only the 
same as between the two dynamometers, the above numbers would 
have to be increased in the ratio of 100 to 03.2 (see above), and we 

should have: 

Total efficiency. 90.7 

Available efficiency... 83.9 


PniNCETON, N. J., April 10, 1880. 


Edison Dynajio Electihc-Machine, Lajips and Conductous. Published in Van Nostkand’s 
Engineehing Magazine, January, 1SS2. 

In -nTiting tliis tlicsis I Imvo endoavoreci to dotormino as nearly j 
as I was abk) tlio cost ot electric ligliting by incandescence. Ow¬ 
ing to (be interest attacbed to tlio subject, and tho lack of data 
upon which calculations can bo based, I have endeavored to con¬ 
sider tho subject in all its details, and have taken every precau¬ 
tion that suggested itself to guard against error. 

Tho data given aro sulliciont to calculate the number of lamps ' 
to bo obtained from each indicated horse-]iower in a steam engine; 
beyond this I have not attompted to go, as my experience is in- 
snlhcient to enable mo to make any further determniations. 

Eppiciency op tub Generator. 

Tlio generator tested was one of the latest pattern devised by 
Mr. Edison. 

In my exporinionts tho field was excited by a ourrent sluinted 
from the main circuit, tho relative resistances of tho niaiusand magnet 
coils dotorniiiiing tho amount of energy oxiiondod on tho magnets, ' 

and consequently the intensity of the magnetization and the electro¬ 
motive force of the generator. 

Apparatus for Measurement of the Mechanical Energy trans¬ 
mitted TO THE Generator. 

In measuring the energy transmitted to the generator, the 
dynanionietor built by the class of ’79 was used. This was carefully 
standardized hy supporting tlie pendulum in a horizontal position at 
a point 2 feet from the axis of tho shaft, and weighing the pressure 
of tho support upon a platform scale; the weight of the pendulum 
and support was 1S3.25; the weight of the support was 12.1; the 
weight of the pendulum was 171.2 Ihs. 

This gives us the force acting at tho circumference of a pulley 
of 1 foot radius by multiplying 171.2 by tho sine of the angle of de- 
fieotion. This is a measure of the force transmitted through tho 
gear at the top of the pendulum, and includes, beside the force re¬ 
quired to turn tho armature in tho field of force, the force necessary 
to overcome tho friction of the dynamometer bearing, and also tho 


friction of the armature shaft in its bearings. In order to determine 
what part of the transmitted energy was lost in overcoming friction, 
a Prony brake was applied to the pulley of the armature, close beside 
the belt, while the generator was running. Removing the brushes, 
to be sure no current was generated, we tightened the brake until 
the pendulum showed the same deflection that it did during the test; 
we thus made a direct substitution of the Prony brake for the re¬ 
tarding action of the lines of magnetic force upon the armature when 
the circuit was closed, and the force exerted by the arm of the brake, 
upon a platform scale reduced to the radius of the pulley, will ho the 
force required to turn the armature in the fleld of force. Instead of 
measuring the pressure exerted by one arm of the brake upon a 
scale, wo measured the lifting effort exerted by the other end upon a 
weight resting upon the scale. We placed a light counterweight 
upon the other end of the brake, to make the zero reading more 
deflnite, and in getting the zero we raised the counterweighted end, 
and let it down gently, rapping the center of the brake to prevent 

Several readings fixed the zero between 3oi and 35. Running 
at about the same speed as in the test, and tightening the brake un¬ 
til we got a deflection of 42°, we made several readings on the scale, 
which varied from 19 to 20J^. Using the highest zero reading and 
the lowest running reading, we get a force of lOJ lbs. acting at a dis¬ 
tance of 2 feet from the center of the shaft; this reduced to the 

radius of the armature pulley gives 101X^-19.2 for the force act¬ 
ing at the circumference of the armature pulley. If no friction had 
intervened this force would have been 

lT1.2Xt8ine42°—C0.913) __n, 


Showing a loss of 91.C«:-'<9.2~12.444 lbs., or 13i per cent, of the 
power transmitted. 

This loss of 18J per cent, is caused by the friction of the dynamo¬ 
meter and the friction of the armature bearings. To get the force 

actually applied at the circumference of the pulley on the armature 
shaft, we must determine the friction of the dynamometer bearing 
alone. To do this we made a wooden brake of the same diameter as 
the driving pulley on the dynamometer that could run on a 10-inqh 
pulley on the dynamometer shaft, we then clamped the Prony brake 
upon the dynamo pulley, and also clamped the belt on the dynamo 
pulley and passed it over the wooden brake. Running under these 
conditions and tightening the wooden brake on the 10-inch pulley 
until the pendulum showed a deflection of 42°, we measured the 
force acting at the circumference of the dynamo pulley and also at 
the circumference of the dynamometer pulley by the lifting effort of 
the Prony brake upon the weight on the scale. The object of this 
arrangement of brakes was to get the friction under the same con¬ 
ditions as those under which we ran the test. To got the zero reading 
in this case wo clamped the' Prony on the dynamo pulley, and 
loosened the wooden brake and counterweighted the other arm 
of the Prony brake, until the armature turned in its bearings; then 
letting it come to rest and rapping the bearings of the dynamo 
and dynamometer, we determined the zero reading to bo 33 lbs. 
Several readings fl.xed the readings for 42° at 10 lbs., therefore 
the force acting at the circumference of the dynamo pulley was 
(33—10) X^—81.C, showing a loss of 91.044—81.0—10.044 lbs., 
or 10.9 per cent, of the total energy transmitted. 

Apparatus Fou the Measurement op Electrical Energy. 

The resistance over which the generator worked consisted of 
three strands of iron wire in multiple arc, each of which was .1Q4" in 
diameter. These were stretched from one gallery of the shop to the 
other in the open air. . 

In measuring the resistance of the different parts of the cu-cuit 
wires were led from the binding posts of the generator to the -Wheat¬ 
stone bridge, then by breaking the connection with the armature and 


magnet coils, we could measure the resistance of the line, or by- 
breaking the connections with the line and magnets we could meas¬ 
ure the resistance of the armature and leaders, or by breaking the 
connections with the armature and the line we could measure the 
resistance of the magnet coils. 

The electrical energy developed in the circuit was determined by 
three methods: 

1st. By a voltameter, or a copper-depositing cell. 

2d. By a calorimeter. 

3d. By measuring the electro-motive force and resistance. 

First Method. 

The voltameter consisted of a glass jar large enough to hold six 
plates of copper, 7"X8". 

These were placed i" apart, and held in place by a light wooden 
frame. They were connected alternately to the positive and negative 
wires from the generator. This method of arranging the plates 
brings both sides into action, gives a large area of plate, and makes 
the resistance of the cell very low and the consequent heating very 
little. By means of mercury connections the voltameter could be 
thrown into or out of circuit instantly without breaking the current, 
and the leaders were so proportioned that throwing it in and out did 
not alter the resistance of the circuit.. 

In calculating the current from the weight of copper cai-i'ied 
from one set of plates to the other, the weight gained by the negative 
plates was considered as the weight carried over, and the constant 
.32456, given by Sprague (Jenkin gives .324) for the amount of copper 
in milligrams carried over in one second by a current of one Weber. 
Before making the test, the current was passed through the volta¬ 
meter for some time, in a direction opposite to that in which it was 
passed during the test, to insure that the copper carried over during 

the test was copper that had been deposited before, othei-wise energy 
may be lost in separating the copper from the positive plate. 

Second Method. 

In determining the electrical energy by tbe second method, a 
calorimeter was used which consisted of a cylindrical vessel of gal¬ 
vanized iron encased in a wooden jacket, and so supported as to leave 
an air space of about } an inch on all sides between the calorimeter 
and the jacket. This prevented any great conduction of heat from 
the calorimeter to external objects; still some heat must be wasted 
in heating the calorimeter and the surface it rests upon. 

To determine the amount of heat thus wasted 55 lbs. of water 
were put in the calorimeter, and its temperature carefully determined 
it was 19.85°0. A large pail of water was then heated to 54.3°0, and 
18J lbs. ivere poured into the calorimeter. This made the weight of 
water in the calorimeter about tbe same as was used in the test, and 
the same part of the calorimeter was heated in each case, the final 
temperature of the water being 28.50°C, the range of temperature 
used in the test was included in this range. The Ireat contained in 
the water poured into the calorimeter may be represented by 18.75 X 
20.2—491.25. Of this 55 X 8.05=475.75 went to raise the temperature 
of the water in the calorimeter, and the remainder 156 must have 
been imparted to the calorimeter. As the range of temperature in 
the calorimeter was 8.05°, 1.78 of these units were required to raise 
the temperature 1°, or the same amount of heat was used in heating 
the calorimeter as would be required to raise 1.78 lbs. of water through 
the same range of temperature; therefore the proper correction may 
be applied by adding 1.78 lbs. to the weight of water in the calori¬ 

To measure the heating effect of the current, a coil of copper 
wire was put into the calorimeter, the resistance of which was ex- 


actly Ohm. at The chief source of error in a calorimeter 

test of this kind is the tendency of the current to pass from one part 
of the wire to another through the water, instead of passing through 
the wire. This in itself is not a source of error if we measure the re¬ 
sistance of tlie coil in the water, but in so passing, it may carry metal 
from one part of the wire to another, and the energy so used cannot 
he calculated, and is lost; to obviate this difficulty distilled waterwas 
used, the resistance of which is much higher than ordinary water. 
The resistance of the coil measured in the water did not differ per¬ 
ceptibly from its resistance in the air, and at the close of the test no 
evidence of copper having been carried from one part to the other 
was discernible. To determine the range of temperature during the 
test, a Fahrenheit thermometer was used that was graduated to fifths 
of degrees, but the gi-aduation was so plain that twentieths of a de¬ 
gree could easily be read. In order to be certain that the temperature 
of the water was unifoim throughout a pump was placed in the cen¬ 
ter of the calorimeter, which consisted simply of a copper tube about 
IJ" in diameter, its bottom was J" above the bottom of the calorime¬ 
ter and contained a valve opening downward; the piston also carried 
a valve opening downward. The water in the calorimeter covered 
the top of the tube, and by this means the water was taken from the 
surface when it is warmest, and carried to the bottom, where it is 
coldest. The circulation thus obtained was very perfeot,.as shown by 
some ink drops pnt in the pump barrel. 

Third Method. 

In determining the electrical energy by the third method, the 
electro-motive force was measured between the binding posts of the 
generator, by means of a Thomson high-resistance galvanometer. 
As a standard of electro-motive force, Latimer Clark cells were used, 
four of which were made up new for the purpose. These agreed with 
each other veiy closely, and in using them they were connected 

in series, thus getting their combined effect, and averaging their 

In using them they were allowed to charge a condenser, and the 
condenser was then discharged through the galvanometer. 

The deflection produced is an accurate measure of the current 
flowing through the galvanometer and consequently of the charge 
held by the condenser, which depends upon the electro-motive force 
of the terminals connected with the condenser. To connect the con¬ 
denser alternately with the cells and the galvanometer, a simple 
switch was used by winch the change conld be made instantly. In 
making the teat part of the condenser of .2-ii^ microfarad capacity 
wire used and four standard cells in series. The damping magnet of 
the galvanometer was then adjusted until the discharge of the con¬ 
denser produced, a deflection of 291 divisions, as the electro-motive 
force of the cell is 1,450 volts and four in series were used, the de¬ 
flection corresponding to one volt instrument 

being standardized in tins way, the liability to error was very small;, 
in use, however, ■ji'j of the current was shunted from the galvanome¬ 
ter, only allowing iV to pass through, thus getting five deflections to 
a volt. 

The ends of all wires dipping into mercury were amalgamated 
ivith mercurous nitrate, which made the connections veiy perfect. 

In measuring the resistances of the armature and of the arma- 
tnre and leaders, the Wheatstone’s bridge was used, and Thomson’s 
reflecting galvanometer in place of the small galvanometer usually 
employed.. The resistance of the armature mains and leadere was 
between .17 and .-IS Ohm. When the bridge indicated .17 the 
galvanometer showed a deflection of 29.6 divisions; when it indi¬ 
cated .18 the galvanometer showed an opposite deflection of 45. 
From this we; get the resistance of the armature mains and leaders, 
.17896 Ohm. 

The main alone measured .14400, leaving for the resistance of 
the armature and leaders to the binding parts .029 Ohm. 


Leading wires being clamped on the commutator the resistance 
measured in several positions was .10207. Those loaders measured 
.14001, leaving for the resistance of the armature alone .010 Ohm. 

The resistance of the field magnet coils was 37 Ohms. 

Test uy Voltameteh. 

Before making the test the generator was i*un for some time to 
allow the circuit to heat up, and the resistance of the lino measured 
from time to time until it was found to remain constant. The volta¬ 
meter was then introduced into the circuit and allowed to remain 
fifteen minutes. 

During this time the speed of the dynamometer was determined 
for ten minutes, and the avei'age speed computed. 

The deflection of the pendulum was observed every three minutes 
and the average taken, although the variation was only one degree. 
At the end of the test the circuit was broken and the resistance again 
measured, and it was found not to have changed perceptibly. 

The plates wore then removed, washed in water, thou in alcohol, 
and dried in a gentle heat. They were then weighed carefully. 

’ Data obtained prom the Test. . 

Weight of copper gained by negative plates — 24,405 m. g. 

Time of test — 15 minutes. 

Weight gained per second — 27,183 m. g. 

Average speed of dynamometer — 400.5 rev. per min. 

Average deflection of pendulum »■» 42° 20'. 

Eesistance of iron wire — .70 Ohni, 

Resistance of iron wires and magnet coils in multiple arc — .744 

Total resistance of circuit—.744-|-.020—.773 Ohm. 

Internal resistance of armature—.010 Ohm. 

Results obtained froji Data. 

Value of current in webers—|^4l?—83.753. 


Electrical energy (S3.753)»X.773X44.24—239880.720 ft. lbs. per 

Energy indicated by dynamometer 171.2X (sin. 42°—.07344)x 
4505X0.2832—290125.54 ft. lbs. per minute. 

Friction of dynamometer and generator 290125.54X.135—39100.- 
9479 ft. lbs. i)er minute. 

Energ)' used in turning armature in field of force 290125.54X855 
—250958.59 ft. lbs. per minute. 

Friction of dynamometer alone—290125.5X.109—31023.08 ft. lbs. 
per minute. 

Energy actually applied to armature pulley 290125.54X.891= 
258501.90 ft. lbs. per min. 

Of the total electrical energy 239880.7^-i|=4905.189 appeared in 
the armature, ^ X 239880.720=4047.39 in the magnet coils, 

and 230208.170 ft. lbs. per minute in the external circuit. 

The efficiency of the generator is the ratio of the energy required 
to turn the armature in the magnetic field, to the total electrical 

The commercial efficiency is the ratio of the energy required to 
(h'ive the machine (including friction) to the electrical energy which 

appears in the external circuit=---.?^?il^i®!-. sam! 

258501.00 ■ 

Test by means of the Caloiiimeter. 

- --- ..,«.sB„o,aior was Hmt run until the 

cu-cuitwas tlioroughly heated, and the same care was taken to de- 
termmo the speed and deflection of the dynamometer. When the 


calorimeter was thrown into the circuit an approximately equal re¬ 
sistance was thrown out so as not to change the total resistance too 
much. At the end of the test the resistance of the circuit was meas¬ 
ured carefully as soon as the circuit was broken and before tbe wires 
became cooled. 

Data obtained prose this Test. 

Water in calorimeter — 77 lbs. 

Connection for waste heat ■= 1.78 lbs. 

Range of temperature = 79° — C9.8°='9.2°F. 

Specific heat for this range = 1.0015. 

Average speed of dynamometer —-SOi rev. per min. 
Average deflection of pendulum — 43° 24' (sin =-.08709). 
Time of tests •= 10 minutes. 

Resistance of iron wires and calorimeter coil — .08 Ohm. 
Tins and magnet coil in multiple arc = .007 Ohm. 

Total resistance of circuit .007-t-.029=.090. 

Resistance of caloiimeter coil = .1 Ohm. 

Results obtained prose these Data. 

Energy actually applied to armature pulley 201201.40X.801=- 
2604Gt).5 ft. lbs. per min. 

Of the electrical energy 243750.30X^^?^=>6003.CO appeared in the 

ai-mature 243759.30 X 41 °*^' 

233930.81 ft. lbs. per minute appeared outside. 
._ 243759.303 

the magnet coils; and 

Test by Measurejeent op the Electro-Motive Force and Re¬ 

In this test the electro-motive force was measured between the 
binding posts of the generator, and the external resistance was 
measured between the same points. 

Tho deflection and speed of the dynamometer wore measiired at 
the same time, the electro-motive force was ebserved and the resist¬ 
ance was measured just before and after these observations and was 
the same in both cases. 

, , , . , . . 78118X1.0015X9.2X772 

Energy developed m calorimeter—---=• 

35022.897 ft. lbs. per minute. 

Total electrical energy 35022.807X0.00"-243759.30 ft. bs. per 

Energy indicated by dynamometer—171.2X.08700 X 804 X 0.2882 
—201201.40 ft. lbs. per min. 

Energy used in turning armature in field of force 201201.40x 
.806-251880.206 ft. lbs. per rain. 

Data obtained prom this Test. 

Electro-motive force—53 volts. 

Resistance, of circuit (extei^al) .04 Ohm. 
Resistance between binding posts .020. 

Average speed of dynamometer, 866 rev. per min. 
Average deflection, 42° (nat. sine—.00013). 

Total resistance of circuit, .058. 


Results obtained fiiom these Data. 

Energy dovoloped in external circuitft. 
lbs. per min. 

Total electrical energy 19r5C7.43X^=-20GG73.02!)5 ft. lbs. per 

Energy in armature 20GG73.029X^-j^”502i').5. 

Energy in magnet coils ^~-X44.24~334G.0G7 ft. lbs. per i 
Energy in external circuit 198300.S8 ft. lbs. per min. 

Energy indicated by dynnnioniotor 171.2X.00013X855X02332”;- 
2553+9.04 ft. lbs. per min. 

Energy used in turning armature in field of force 255519.04X 
.8G5—221023.97 ft. lbs. per min. 

Energy actually applied to armature pulley 255519.04X.891—■ 
2270G7.47 ft. lbs. per min. 

. 20GG73.n293 

Elhciency— TwjoSjTjy '“•935. 

„ • , • 198300.88 __ 

Commercial efficiency—87. 

Average efficiency, .951. 

Average commercial efficiency, .887. 

It will, therefore, be seen from the above tests, that as long ago as January, 1882, the Edison machine converted into electrical energy 
95 per cent, of the indicated lioiso-power expended, and that 88 per cent, of sucli lioise-powor was converted into actual light. Since the 
above tests, Iiowever, furlher improvements have been made which show even a still higher efliciencj'. 




12i INCHES. 






The Edison “H” Dynamo 

-ioo XjIcs-kc'I's oin le OAAnsrorjEi ejaaoii. 


26 Lamp Dynamo_ $460 00 I 200 Lamp Dynamo $2,400 00 

60 “ “ .... 750 00 800 “ “ ...: 8,460 00 

100 “ “ .... 1,860 00 1 400 “ “ .... 4,500 00 

These prices include a full complement of lamps and sockets, 
together with a hand regulator for controlling the candle power 
of the lamps in circuit. 

The price of fixtures varies acci 

common factoiy use, however, their cost would probably not ex¬ 
ceed 76 cents per lamp. A catalogue showing the various styles of 
fixtures made for the Edison lamp, together with the prices of same, 
will bo found at the end of this book. 

The remaining item entering into the cost of a plant is the 
wiring, which in a plant up to 800 lamps capacity will average $5 
per lamp, and in larger plants $4.75 per lamp, exclusive of the 
travelling expenses and hoard of the workmen. 

lording to stylo and finish. For 
















It should be noted that these figures are the indicated H- P.: for 
the effective power, allowance should bo made for the friction of the 
engine- Also, that the steam pressure is the initial pressure upon 
the piston ; to obtain this pressure it is often necessary to carry a 
much higher boiler pressure if the engine is located at a distance 
and the steam pipe is too small or crooked; allowance should be 
made for all this- It is very desirable that the steam pipe should be 
ample in size, and as short and direct as possible, to obtain the best 

Engines -will be furnished for speed noted, and the Automatic Out- 
off Regulator la so constructed that a variation can be made either 

way within moderate limits, but not to the extreme limits given in • 
the tables ; it is, therefore, nece-ssary that about the- speed at which 
the engine is required to be run should be stated- Unless othenvise 
oifieied the engines will be sent with the regulator adapted to the 
following speeds: 0.5 x 8, 350 Rev.; 8.5x10, 300 Rev; 0.5x12, 

SmLL 275 lUolution; 

per minu e, these being the speeds tliat we recommend. 

s ngle-wheel engine. We do not recommend other speed than this, 



eighths . 




i = .I2S 

^ = •75 


*=-i 87S 



* = -6875 
il- = -8125 
45- = .Q37S 

* = •03125 
'1 =-25625 

* = •21875 

* = •28125 

M =-40625 


'IS = -59375 
.2^. = .65625 
= .71875 
= .78125 

M =-84375 

M =-90625 
|.j. = .96875 

* = •015625 

* = .078125 

* = .109375 

* = .140625 

1 H = .171875 
i} =-203125 
M- = -234375 

= .265625 
J| = .296875 
§4 = .328125 
= -359375 
= .390625 
= .421875 

H = •484375- 

3 j = .515625 

3J = .546875 
e =-578125 
M = -609375 
M =-640625 
-43. = .671875 
31 = .703125 
3i =-734375 

U = -765625 
M = -796875 

3j = .828125. 
M = -859375 

3 j = .890625 
33 = .921875 
3i = .953125 
31-= .984375 


Areas of Circles in square inches. • 



Square Indies. 


Sq. Indies. 




Eq. Inches. 















































































314-16 i 






























1 H-75 








































































































































Rule. — Square the diameter in inches and multiply by .7854. 




(All Dimensions in Indies), 









1 q| R 

















24 i 44 


5 ! .-iS} 



' loji 











28S| 48 

08 1 

10 i 05}! 

1„ j 


45} 15J 

ISI 1811 










Messrs. BERGMANN & CO. 

202 to 2©e ijTE'W ■STOOESIZ OZT'^. 

These Electroliers, Brackets, etc., are especially designed for the Edison Incandescent Electric Lamp. They are 
provided with the standard sockets and wired in the best manner, in accordance with the requirements of the Board of Fire 
Underwriters and the rules laid down by the Engineering Department of the Edison Company. There is a large variety of 
designs of various prices, from which selections can be made suitable for all classes of work. 

Most of the devices and fixtures illustrated in the following catalogue are manufactured and sold under patents 
which are controlled exclusively by the Edison Company and Messrs. Bergmann & Co., and the public are respectfully 
cautioned against all infringements of the same. 

The illustrations in the catalogue represent only such leading styles of fixtures as its' space permits us to show. 
It will be observed that the use of the Edison Incandescent Light offers a wider field for ornamentation in Electroliers, 
Brackets, etc., that! that of gas. Special designs and estimates for all styles and classes of work will be furnished. 





















I’ivtcntcd Sept. 24, 1878. 

Bracket, 15 x 24 In. 

Iicse orices do not include Upright Stems, Shades or I 




A Ruby. 

H Op.ilcsceiit, 
C Pc.irl, 

D Ruby. . 
li Op.ilescent, 
I' Pearl, . 

fA Ruby, 

•< B Opalescent, . 
1 . C Pearl, 

(A Ruby, . 
IIS'; 15 Op.alescent, 
i C Pearl, . 

A Ruby, . . . ‘ 

13 Corrugated Dark Amber, ‘ 

C Clear Amber, . 

D Opalescent, . 

Ruby, . 

Clear Amber, 
Opalescent, . 

Ruby, . 
D Pearl, 

" Yellow, 

S2I 50 
i8 50 

i6 50 

28 50 

26 50 
25 00 
25 00 

27 50 


"Jo. 12501 ' 
'To. 12.55!"' 


No. 1150 Pan Opal Globes, Plain White, 

No. 1160 Opal Globes, Plain White, 


Yt'A '■ 



No. 1170 Decorated Opal Globes, in variety of 
styles and prices, among which are— 

A, Decorated on White Ground, . . 7 W ii 

15 , Tinted “ , . . 7G i, 

C, “ '• •■ . . 754 i, 

D, 7J^ ii 

3 75 

4 00 
4 SO 





Edison Company for Isolated LiIhtin'o, y 

‘ . 65 .fifth" AyENUE/-‘^fE 

•Edison Lamp Company, t ' 


Edison Machine Work! 


Edison .Tube Company, . f . 


Messrs. Bergmann & Co... ' " ‘ 


292 TO 298.' AyENUE'.B, NEW YdRK CITY. 

^ i’2. I .3 • 

‘..f 1119 ' 





ISrOVEMBEE 18 th, 





















EATON, PrmdmtM 

F. S, HASTINGS, Treasurer. 

J. HUTCHINSON, Secretary. 


G5 Fifth Avenue, New Yoric City* 





E. H. JOHNSON, President and'Generai Manager. 

J. HUTCHINSON, Manager. 

F. S. HASTINGS, Secretary and Treasur 


Fifth Avenue, New YorU City, 

.iLouiBvlIlo, Ky.. 

Edison Electric lUuminating Company of Brockton 

This folder contains printed material issued by the Edison Electric 
Illuminating Company of Brockton. This company was organized in February 1883 
by William Lloyd Garrison, 3r. The plant commenced operatiori on October 1 of 
that year. It was the first underground application of Edison s three-wire 
distribution system. 

The following item has been filmed; "Description of Edison Electric Light 
Plant, of Brockton, Mass." (1885). 

■ y 


. N 

l< Edison Electric Light« 

I !i 


r - 



^ I'K z/, 

I . ■ 

E|.1!C1KICAI. IlKVlIiW.] 

Incandescent Electric Lighting; 




W. J. JICNKS, L\tk Sui’KK1NTKNui:nt. 

Edison Electric Illuminating Company of New York 

... printed material issued by the Edison Electric 

Illuminating Company of New York. Organized in December 1880 to build 
generating stations in New York City, this company constructed the Pearl Street 
central station, which began operation September 4, 1882. 

The following item has been filmed; "Annual Report" (1884). 


' . / REPORT 



DE0E1V03ER 9tii, 

Western Edison Light Company 

This folder contains printed material issued by the Western Edison Light 
Company of Chicago, Illinois. Organized in May 1882, this company oversaw the 
installation of electric lighting plants in Chicago and throughout the Midwest. 

The following item has been filmed: "First Bulletin" (1882). 

Edison Electric Light Company of Europe, Ltd. 

This folder contains printed material issued by the Edison Electric Light 
Company of Europe, Ltd. Organized in New York in 1880, this company controlled 
Edison's electric light patents in Europe, excluding the United Kingdom. 

The following items have been filmed: 

1. "Notes on the Formation of an International Edison Company" (1883?) 

2. "International Edison Company. Articles of Association." (1883?) 

The following items, also found in D-82-028 (Document File Series), have not 
been filmed: 

1. "Translation of the Contract of November 15, 1881 between The Edison 

Electric Light Company of Europe, Ltd., and Messrs. [Charles] Forges and 
[Elie]Leon." (1882) _ , _ 

2. "Report of Messrs. [Theodore] Puskas and [3oshua F.] Bailey to The Edison 
Electric Light Company of Europe, Ltd...." (1882) 









Nmded in. 60,000 Shares half paid-up to Bearer. 


In payment of the Edison Patents having relation to the 
Electric Light and to the transmission of motive power, there 
is to he allowed to Mr. Edison or to his assignees, 30 centimes 
per lamp mnnnfactured, employed, or sold by the Society, and 
40 per cent, of the profits after the dednetions provided for 


(1.) Installation of Control Stations selling light to sub¬ 
scribers at a fixed price and by measure. 

(2.) Isolated installations exploited by the Company itself 

(3.) The sale of isolated installations and of lamps. 

(4.) Mnnnfnctnre of machines, lamps, iSic. 

(0.) The sale of patents and of licenses and the constitution 
of Sub-Oompanies, subject to the conditions expressed 
in the Articles of Association. 


An oiiimon mny be formed ns to tbe probable profits of this 
brniicli of the business of the Company by the aid of the estimates 
inopnred by onr engineers, and joined to tliis paper for a Central 
Station at tlie Bon Marolid, and another at the Ene Basse dn 
He 1 a t i tlie Grand Opera. 

Tiio prices paid for eleetrio material in these estimates are those 
at present paid to tlie Edison Faotoiy near Paris, bnt it can be 
conclnsively shown that tliese prices are 25 per cent, higher than 
tliose at wliicli the material ean be actually delivered. 

Tins is duo to the fact- of the recent establishment of the 
Edison Factory at Ivry, the prices of which with these orders in- 
hand would bo reduced at least 25 per cent. 

Tlie e.vpcnse8 of exploitation are also calculated at the highest 
hgnre possible, and the lighting power of the Standard Lamp A 
18 reckoned ns only equal to 180 litres, though in reality, owing 
to tlie possibility of a better disposition of the incandescent lamp 
than 13 possible in the case of the gas jet, the Standard A. lamp 
of 10 eaiidlcs is equal to the jet of gas consuming 200 litres. 

In the estimates for the Basse Eempart Station the average 
consiimption of five hours is allowed for. But it is certain that 
the consnniers who are to be furnished with light from this 
btation me principally theatres, restanronts, cafds and dubs, 
whose regular consumption is from six to seven hours per day. 

The average of hours of consumption at the Bon Marchd 
Station accoi-ding to the estimates is 4J hours. 

Also the price of gas has been taken as the point of departure 
in these estimates, that is to say, six centimes per lamp A. and 
per lour. nt it is evident that taking into account the great 
^ vantages that the Electric Light has over gas, above all for 
hedres, rostanraiits, eafds and clubs, a somewhat higher price 
may be charged than that paid for gas. 

In these estimates the replacing of lamps is provided for ut the 
price they cost to the Compagnie Continentale nt the present 
moment, while this coat is certain to be reduced in the next three 
months by at least 20 per cent. 

No account has been made in these estimates of the considerable 
profits that the Company will" realize from the sale of motive 
power during the day. 

The Central Stations of the Hue Basse dn Eempart and at the 
Bon Marchd are not isolated cases nt Paris ; several other Central 
Stations may be established with the same advantages; for 
example the Palais Eoyal offers at a nominal cost the ground for 
the establishment of a Central Station, supplying the Conseil 
d’Etat, the Theatre Franqais, the Palais Eoyal, and the great 
number of shops, cafds and restaurants that are to bo found there, 
in aU, more than 12,000 lamps in a very small space. 

Another Station may bo established between the VariMs and 
the Gymnase on the Boulevards, and another in the quarter of 
the Ch^eau d'Em to serve the theatres of the EenaUxauce, 
I Ambigu, Port St, Martin, Folios Eramatiques, and the numerous 
shops, cnf(§8 and restaurants in the respective vicinities. 

No reference is made in this Memorandum to the niimerons 
central station enterprises proposed, or in various stages of 
preparation, outside of Paris, in France and in other countries in 


The estimates herewith submitted relative to on installation of 
600 lamps at the Bon Mnroh4 show a profit of 66 per cent. This 
installation was mode as a trial, and worked from Nov. 17, 1882, 
to April 30, 1883, at the price of five centimes per lamp and 


por hour, eqnol to about 25 contimea per 1,000 feet of gas (five 
centimes less than the current price of gas at Paris), and with 
the above results. The Bon Marohd now asks for an installation of 
two to five thousand lamps with a small diminution of inice, and 
the contract is already agreed upon. 

Installations may be made in the some conditions at the dopOt 
of wines and liquors at the Quay St. Bernard, at the Printing 
House Chaix, at the depOt of Beroy, Eden Tlieatre, Trocadiro, 
Palace Theatre, and several other Theatres ; and at the Hue Darn, 
the Railway Stations of Paris Lyons and the Mediterranean, and 
many other places. 

These installations will, according to the most carefpl estimates, 
Irased on aotaal exploitation, give an average profit of from 40 per 
cent, to C5 per cent, on the capital employed. 


Since the constitution of the Edison Companies, 17th Pebruary, 
1882, they have sold 100,175 lamps, and 287 dynamo machines, 
making a total invoice value of frs. 1,095,887 35 centimes. 

During the first seven months after their organization, the 
Prench Companies were obliged to order all dynamos, lamps, &c., 
from New York, and at snch prices that little profit was made 
except on lamps. 

Also the Prench Companies sell to their Sub-Companies all 
material at factory prices, so that the profits on such sales figure 
in the returns of these Companies instead of those of the Prench 

The lamps, except those sold to Sub-Companies, are sold at an 
average of frs. 0 each, and their coat to the French Company is 
frs. 2.50. 

The dynamos bought from the factory at Ivry, except those 
sold to Sub-Companies, are sold at an average not profit, all 


commissions deducted of 35 per cent., and a not profit of at least 
20 per cent, is made by the factory, making a total net profit of 
65 per cent. Tlie prices con be reduced to the public 26 per cent, 
without diminisliing the profits of the Company owing to the 
fact mentioned in paragraph three of the foregoing section bn 
‘‘ Central Stations.” 

The total profit of the of Soo\it6 Eleclrique from the sale 
lamps, dynamos, &o., for the last six months, has been in round 
numbers frs. 150,000. 

The results gained have been without attempts at publicity, 
and against the difficulties incident to a new organization in a 
bnsiuess where there was no guidance to be obtained from the 
cxi)erience of others. Engineers were without experience and 
have had to be instructed; installations have been made at 
abnormal cost for time and expenses of engineers, losses from 
defective material and irregular shipment. But though the 
profits on material sold have been largely absorbed by these 
incidents of an exploitation whoUy novel, there has not been a 
single case of failure or of accident, and no installation has been 
mode to which reference cannot be made with confidence. 

The demands for these installations ore constantly increasing in 
all parts of Europe, and it is difficult' to place a limit to the 
extension of the business in this direction. 

There exist for example in France alone about 12,000 manu¬ 
facturing establishments which have motive power, and which 
would find economy and security in using the incandescent light. 

Private houses and chatenns also offer a good field, as yet 
untouched, for development, through the use of the perfected gas 
machines and other small engines which are now being brought 
into practical shape. 

Independently of the profits that the Company receives from 
tlie sale in the first instance of isolated installations and of 
lamps, it is necessniy to remark that every isolated installation 
gives a certain average yearly sale of from 60 to 500 lamps, and 
that every lamp gives a profit of abont 3 Frs. 


Manufacturing was first commenced at the faotoiy regularly 
at the commencement of the month of August, 1882, and the 
first dehveries of machines were made at the beginning of the 
month of September, 1882. 

The factory has been in operation then just one year. The 
Cmnpagnie Continentale and the SocUtd Electrique have 
during this time given the factory orders to the amount of 
1,101,909 frs. 36 centimes. 

Orders for more than *43 per cent, of this sum, to wit 
frs. 510,600 80 centimes, have been given during the last four 
months. May, June, July and August. 

The Compagnic Continentale and the Societe Electrique have 
honglit, since their constitution on the 17th February, 1882, 
either from the factory at Ivry or from New York, a total of 303 
dynamos, of which 287 have been sold to dote. They have 
bought from the factory or from Now York 137,863 lamps, of 
wiiicli 100,876 have been sold. 

The Dynamos sold were as follows 

0 0. 1200 A. lamps each 

57 K. 250 „ „ „ 

18 L. 150 „ „ „ 

148 Z. 00 „ „ 

68 E. 17 „ „ 

Since the factory at Iviy commenced worlcing it has received as 
above shown an average of orders of one hundred thousand 
francs per month. This amount will bo more than tripled by the 
central installations that are now being prepared, and by the 
regidar increase in the sale of isolated plants. 

Tho minimum of profits realized on the manufacture is 
20 per cent., and the balance sheet shows profits up to December 
30th, 1882, of frs. 08,714-67 and from December 3lBt, 1882, to 
Juno 30th, 1883, of frs. 58,787-74. 


Mr. Edison brings to tho Company the patents for tho 
following countries:— 

Franco and her colonies 



Austria Hungary 



Spain (except her colonies) 

and the considerable exploitation already established in Holland, 
Switzerland and Greece. 

Tho Compagnio Continentale Edison actually existing, has sold 
the patents for Germany on the following conditions, to wit, 
314- centimes for each incandescent lamp employed ; 15 fra. for 
each horse power on all machines of less than 60 horse power, 
and 20 frs. per horse power on each dynamo of 50 or more horse 
power; and finally 21 per cent, in the profits of the Company 
after the solo deduction of 6 per cent, to the Shareholders. 

This contract will bo transferred to tho International Company. 

Offers have been made to the Compagnie Continentale by a 
group of bankers, to organize a Company for Austria on similar 
terms to those above of the German Company. 

A provisional contract has also been signed for the creation of 
an Italian Company, with a first capital of frs. 6,009,000, from 
which fra. 000,000, in fully paid up shares, is to be given to the 
Compagnie Continentale ; also a royalty of 26 centimes per lamp, 
and a royalty of frs. 12 per horse power on every dynamo 
employed either for light or motive power, and 16 per cent, of all 
augmentations of capital in fully paid-up shares. These contracts 
if realized before the date of the constitution of tho proposed 
Company will be transferred to it. 

Attention is called to the fact that, of the different forms of 



exploitation proposed for tlio International Company, tlircc arc 
already demonstrated as giving a profitable employment for 
capital, viz.:— 

(1) . Mannfactnring 

(2) . Sole of isolated plants 

(3) , Exploitation of isolated plants 

The exploitation of central stations is the only employment for 
capital proposed in which an ahsolnto demonstration bused on 
current business cannot bo given of the percentage of profits that 
can be realized. 

Bnt the installation and exploitation of the central stations at 
New York and Milan, now ofiered for examination nflVird date 
that it is confidently asserted, take this form of exploitation out 
of the category of doubt, and establish its practicability with 
large assured profits after discounting against it every clement 
not absolutely determined. 

It will be remarked that the cost of material has been put in the 
estimates for central stations at 25 per cent, more than the cost 
at which it can be manufactured to-day, and that every clement 
of detail has been taken against the exploitation. The result 
reached in this way is so extraordinary that, even if it be reduced 
by one half, no more tempting field for the employment of capital 
can be found. 

Attention is specially called, as an important element in the 
proposed afiair, to the prices of gas on the continent, and to the 
fact that the municipalities whose dispositions are everywhere 
favorable, are nowhere hampered by general legislation. 

In Paris, with coal at 30 francs, we have the present price of 
gas at 30 centimes the metro oube=frcs. 8.40 per 1000 feet. This 
price will prohahly bo reduced to 25 oentimos,=fraa. 7.08 per 
1000 feet, at no remote date. In other cities in France the price 
varies from 30 cents, to 50 cents, per miotre ouho, that is between 
fres. 8.49 and fres. 14.10 per 1000 feet. 

In Italy, at Turin, with coal at frs. 30, the gas is at 26 centimes 
the metro cube, equal to frs. 7-08 per 1000 feet. Tins is the lowest 

price in Italy. At Milan and other cities, with cool at from 38 to 
to 42 frs. delivered at factory, gas is from 35 to 66 centimes, cqnnl 
to frs. 0.91 to frs. 16.67 per 1000 feet. 

In St. Pctersbnrg, with coal at frs. 20.60, gas is 28 centimes 
per metre cnbe, cqnal to frs. 0 per 1000 feet. 

In Madrid, with coal at frs. 45 to frs. 50 per ton, gas is sold to 
the Municipality at 26 centimes, and to private persons nt 
43} centimes per metre cube, equal to frs. 12.32 per 1000 feet. 
In other cities it varies from 42 cents, per metre to 55 cents. 

In Belgium, with cool nt from frs. 13 to frs. 15, delivered at 
place of consumption, gas is sold at from 20 to 30 centimes per 
metre cube, equal to frs. 5.66 to frs. 8.40 per 1000 feet. In two 
suburbs of Brussels and at Gand only tlie price is 15 centimes per 
metre cube. 

In Germany, with coal at frs. 12.50 to frs. 25.00 per ton, gas is 
sold at from 10 centimes to 30 centimes per metre cube, equal to 
■■■ to 8/-per 1000 feet. 

Price of coal in Amsterdam 
» gaa „ „ 

„ cool „ Botterdam 

II gaa „ „ 

In Austria, with coal at from 

sold at from to 

to per 1000 feet. 

frs, 28.40 per ton 

„ 0.20 „ cubic metre 

„ 32.40 „ ton 

„ 0.20 „ cubic metre 

to per ton, gas is 

per metre cnbe, equal 


In illustration of the profit with which the capital here proposed 
can bo employed, it is necessary only to consider business now in 
course, or that is prepared for execution at Paris and the profits 
that can be realized during the first twelve months after the 
orgonization of the proposed Company. 

It is proposed to employ at Paris immediately on its organization 


frs, 3,000,000 in tlie Buc Basse du Bempart; frs. 2,000,000 in 
the purchase of the faetory, plant and material at Ivry; 
frs. 2,000,000 in isolated installations from which light is sold; 
and frs. 000,000 in material for isolated installations sold to 
pnrohasers, making a total of frs. 7,600,000. 

The isolated installations for the sole of light to the amount of 
frs. 2,000,000 can he mounted in Paris, and in fall operation bL\ 
months after the constitution of the capital, so that six mouths 
income from them may he counted in the estimate of profits the 
first year. 

The orders growing out of the proposed installations for Central 
Stations and for isolated plants for the sale of light by measure, 
proposed to be made as above, would together, at a very moderate 
figure, amount to frs. 2,500,000. On this amount wo may fairly 
estimate a profit of 20 per cent, in allowing at the'”same time a 
reduction of cost from improved facilities and largo orders. 

The Society Electrique has made a profit on material sold of 
frs. 160,000 the last six months, and it may therefore be safely 
said that with the natural increase of the business and the 
improved facilities and organization, a net profit may be made of 
frs. 300,000 on the sale of isolated plants the next year. 

We should thus have on the employment of frs. 7,800,000 the 
following profits in the first twelve months; estimating the 
profits on isolated installations for the sale of light at only 40 per 
cent, with six working months :— 

Frs. 2,000,000 Isolated Installations for 
sale of light, earning during six months 

at 40 per cent per annum .frs. 400,000 

Profits from factory, 20 per cent, on orders 

for frs. 2,500,000. . 600,000 

Profits from sales of material for isolated 

plants . 300,000 

Interest at 4 per cent, on frs. 8,000,000 ... 320,000 

Total frs. 1,620,000 

It is thus seen that d dividend of 10 per cent, is assured for the 


first year on the total capital paid-np without going outside of 
Paris, and supposing frs. 8,000,000 to be earning' only Bank 

It is also assumed that thei frs. 3,000,000 invested in the Basse 
Bempnrt Central Station, earns nothing the first year, during a 
part of which it will bo in preparation. 

But as a matter of fact more than the amount proposed to be 
invested at Paris (Frs. 2,000,000) in isolated installations for 
the sale of light, can be invested at once in Spain, Belgium, 
Russia and Ansti'ia, and in France outside of Paris, a considerable 
part of which will yield larger profits than the frs. 2,000,000 
invested in installations above proposed to be made in Paris. 

It is to bo noted also, that the Compagnie Continentale is 
ofiered a first payment of Frs. 000,000 from the Italian company, 
and this, ns well ns the royalty on lamps and machines, will enter 
in the first year’s balance sheet. These amonnts and profits 
derived from other local or national companies, will go to swell 
the receipts of the International Company, unless she shall find 
it more advantageous to keep the exploitation in her own hands. 

The first capital proposed, in view of the magnitude of the 
field, is evidently moderate, and is calculated only for business 
that can be realized immediately on its constitution. The object 
of. the above observations is to show„ that this first capital 
will find an immediate and certain profitable employment, 
and to simply indicate the wider field, and larger profits 
that attend the employment of the quite incalculable capitals 
required for the fuller development of the affairs, which will 
only be well commenced by the capital now proposed. 

The particii)ation of the original subscribers in the profits 
growing out of the creation of these larger capitals is secured by 
the provision that they shall have the right to subscribe one 
quarter of all snoh increases, and by their participation in the 
Parts of Founder. 

It is proposed that the Cmpagnie Continentale, and the 
Societe Electrique transfer to the International Company, nil the 
patents of Mr. Edison ; the German and Italian contracts; all 


contracts for Agencies ; all material in dop^t; all installations 
exiiloitod for their account j property and furniture of offices at 
33, Avenue de I’OpOra, and all business as it stands ; and that 
the Soeiilti! Induitrille transfer its license, the land, buildings, 
installntions, material, machines, &c. 

Hereto annexed are:— 

(1.) Complete list of patents, marked “A.” 

(2.) A statement of all property belonging to the 
Industrielle, Continentale, and Electrique, which will 
be transferred to the International, marked “ B.” 

(3.) List of all installations made and sold by the 
Continentale and Eleetrique up to date, also of 
experimental installations made for demonstration, 
marked “0.” 

(4.) Balance Sheet of the Instalintion of 500 lamps worked 
at the Bon Harch5 between the dates of Nov, l/tli, 
1882, and April 30th, 1883, marked “ D.” 

(5.) Estimates for Central Station (in two parts) at the 
Bon Mnroh5, marked “E.” 

(0.) Estimates for Central Station, Hue Basse dn Eempart, 
marked “P.” 

(7.) Notes of Professor Colombo on the- exploitation of 
the Central Station at Milan, marked “ Q,” 

(8.) Copy of proposed Statutes of the International 
Company, marked “H.” 

(9.) List of names of shareholders of the French 
Companies, marked “1.” 


It is proposed to institnte a Board of Directors of 10 to 20 
members taken from the several countries embraced in the field 
of operations of the Company, 


'Let it lie noted that it is not proposed to organize a French 
Company, but an International Company under the Frenoh_ 

The Board miglit bo composed in the first instance, of say 
12 or 14 persons taken from tlio several countries embraced in 
tlic field of exploitation of tlie Company. These would after¬ 
wards increase their nnmbcr ns they should find desirable. 

It is believed to bo indispensable that National organizations 
be formed in encli country. The whole, or the greater part of 
tlie slmres of sncli Companies should be subscribed and hold by 
the International. Tlie National Companies would have Boards 
of Directors made up from tlie persons heretofore active in the 
Edison afiairs, with such others ns it may be found expedient to 
join with them, and with the Director, or one of the Directors 
sitting on the Board of the International as President. 

The Contracts between tlie International and the National 
Comjianics would fix their relations, and secure the unity of 
administration of nU the National Companies, under the technical 
and administrative control of the International. 

A Committee of the International Board would be constituted, 
who would have weekly meetings for the consideration of current 
administrative affairs. This Committee would send copies of the 
minutes of its proceedings to each member of the Board. 

The entire Board of the International would hold its mootings 
once in three months, or at such intervals as may be found 
necessary. ' 

The Committee should bo limited in their power to vote 
daring the intervals between such meetings, affairs involving the 
employment of more than a given snm, without the written 
consent of two-thirds of the members of the Board. 

At the regular meetings of the Board, a majority os nsnal 
woidd decide all questions. 



Six per cent, to the Shareholders, 
rive per cent. Legal Eeserve,. 

Eight per cent, to the Board of Directors ; 

• The surplus to ho divided between the shareholders and the 
Parts of Founder. ■ The Board of Directors may make 
extraordinary reserves. 

On the liquidation of the Company its assets are to he equally 
divided after the repayment of the shares, on the basis above 
named, that is to say, 60 per cent, to the shareholders, and 
40 per cent. Parts of Founder. 

In order to constitute the Company that is now in view, and 
to obtain the, consent of Mr; Bdisok and tlie Light Company to 
the modifications which they will he asked to accept in the 
'existing contracts, it willrbe necessary to constitute a syndicate 
composed of important financial . houses, guaranteeing the 
subscription of the Capital. 

Tlie profit that tlio syndicate would receive, would he—(1) the 
profits on the sale of the shares subscribed. (2) One quarter of 
tlie profits coming to Mr. Edison and his assignees; (these 
parts of founder have a real and immediate value on account of 
the royalty on the lamp which goes to them.) And (3) in 
addition to the above, the syndicate will reserve to the snhsoribers 
to the first capital the right to snbsoribe a qtmrter of each future 
iucrense of capital of the Company. 

By the figures which we have indicated, and by the possibility 
of tlie unlimited employment of capital which the Company wiU 
have, this right of subscription in all augmentations, gives a 
reasonable certainty of large profits, in as much as there 
will be no augmentation of capital except in proportion us the 
profits of the Company are real and sufiioiently remunerative. 

Tlie right of subscription to a part of this first capital may be 


conceded to important English, German, Austrian, Belgian, 
Dntoh and Italian houses, who may demand it. Tho quotation 
of the shares of tho Company will thus be assured on tho principal 
Bourses of Europe. 


The syndicate will give tho right of at least one quarter of the' 
subscriptions to the actual shareholders of the three Edison 

The syndicate may, if it slioll seem desirable, offer the shares 
for public subscription ; but it may, with still greater advantage, 
sell on the different exchanges of Europe the shares after they 
ore created. A premium on the shares is certainly to be expected 
if it is taken into account that the shares of tho German Edison 
Company formed in the month of May last have been sold at a 
.premium of nearly 20 per cent. This Company has the right 
only for Germany, a country where the average price of gas does 
not exceed 22 centimes per metre oube. 

It is natural to suppose then, that the shares of a Company 
having a right of exploitation, and of creation of new companies 
everywhere in Europe, as well ds of participating in the profits 
of companies already created, or to be created, will bear a still 
larger premium. 


^ttirte of AsBottafioit. 




Articles of ^Maciiifioit. 



Autiole 1. 

Tliere is formed by the present Articles, between the proprietors 
of the shares which are to be hereafter created a Joint Stock 
Company, under the conditions imposed by the French law' of 
July 24th, 1807. 

Autiole 2. 

The Company has for its objects:— 

(1.) Tlie commercial and industrial exploitation by the 
direct employment of its own capital of all patents 
and certificates of addition, or of improvement token 
in the different countries of Europe hereinafter named, 
for tho inventions of Mr. Edison, for measuring, 
distributing, and applying electric currents for tho 

IH'oiluctiou of elcetrio liglit ami the traiisinisBioii of 
motive power, ns is provided in Artiele 6. This 
exploitation will bo oafricd ont,— 

(a) By the manufacture of maohines, lamps, and 
all the material and accossorios necessary to 
the exploitation. 

(A) By the iiistallatiou of Central Stations, selling 
light to siibsonbers at a iixed price, and by 

(c) By isolated installations exploited by the 
Company itself. 

(rf) By the sale of isolated installatious, lamps 
and material. 

(2.) The Company may also, in accord with the Light 
Company, create sub-oompanies, sell the said patents, 
give licenses under them, in a word, do whatever 
shall bo useful and necessary for giving value to the 
patents, but always under the conditions of these 

Autiole 3. 

The Company will have the name of the International Edison 

Abticle 4. 

The duration of the Company is fixed at 60 years from the 
date of its constitution. This duration may bo prolonged by 
decision of the General Assembly, in the manner hereinafter 

AniiOLE 6. 

The principal ofBce of the Company is established at Paris, 
and branches may be established hereafter at such places ns may 
bo designated. 

CllAPTBll II. 


AnTioiiK 1. 

The Compagnie Continentale, in the name of Mr. Edison and 
the Light Company, separately and conjointly, bring to the 
present Company, without any guarantee other than that of their 
existence, alt the patents taken for the inventions of Mr. Edison, 
also for all objects or apparatus that may bo utilized for the 
Electric Light, or for motive power, ns weU ns all patents of 
improvement, and certificates of addition, but subject to the 
conditions of these presents and only iu the following countries :— 

(1.) France and the Frencli colonics ; 

(2.) Belgium ; 

(3.) Denmark; 

(4.) The German Empire ; 

. (6.) Austria and Hungary ; 

(6.) Russia; 

(7.) Italy i 

(8.) Spain ; the Spanish Colonies excepted. 

The Attorneys of Mr. Edison and of the Light Company make 
an express reserve in favor of their principals, of the patents 
taken, or to be taken, the patents of improvement, or certificates 
of addition in the United Kingdom of Great Britain and Ireland, 
Portugal, Sweden and Norway, for the inventions which are above 
named, ' 

In addition, the Compajnie Continentale and the Attorneys of 
Mr. Edison and the Light Company engage for the period, and 
under the conditions herein declared, to give to this Company 
all descriptions and all designs or models that may be necessary 
for the taking of patents for nil inventions and aU improvomouts 

in all the comitries of Europe not reserved above, in so for as 
these inventions and these improvements relate to the distribntion 
of eleotrio currents, ond to the production and transmission of 
oleotrie light, and of motive power as is stated in Article 2. 

All tlie new patents, or patents of improvement, or eertifientes 
of addition, shall be taken in the name of Mr. Edison, bnt by 
reason of tlie present engagement, the rights of property of the 
International Company in the said patents, patents of improve¬ 
ment and certificates of addition, shall bo the same as those which 
the Company will possess in the existing patents. 

All the expenses that shall be made for furnishing descriptions 
designs or models, shall be supported by the present Company, 
also all annuities and expenses made and paid for, the taking of 
now potents commencing with the date of registration of the 

All patents already taken and making part of the present 
engagement, shall be transmitted to tlie Company the day of its 

These patents will remain in the possession of the Company, 
but will always be held at the disposition of Mr. Edison and the 
Light Company, who will have the right either to take copy 
directly or on their order, and without expenses at nil times. 

The Attorneys of Mr. Edison and the Light Company engage 
the latter, whenever it shall be required, to give their aid for the 
accomplishment of the legal formalities necessary to assure to the 
ompany the riglit of property in tlie said patents, patents of 
improvement and certificates of addition, taken, or that may be 
taken, and which make a part of the present engagement. 

On the other side, the Attorneys of the Light Company engage 
that the Light Company shall not exploit,'directly or indirectly, 
inventions of Mr. Edison in so far as thdy have relation to the 
electric light and of motive power in any of the countries if ' 
' mope where the laws do not rccogiiiiio the existence of patents.' 

It is well understood that the said patents, in all that concerns 
other objects than those hero above enumerated, remain the 
exclusive property of Mr. Edison and of the Light Company, ond 
that the present Company will have the exclusive ownership of 
the said patents and inventions only as to the objects here above 

AllTIOLE 2, 

In case the laws of countries other than Franco should 
not permit the division of property in the patents and in the 
manner above provided, Mr. Edison and the Light Company 
shall transfer to the International Company the exclusive right 
of the nso of these patents for the objects named in the present 

AllTIOLE 3. 

In all sales or transfers of patents or of rights attaching 
thereto, the rights above reserved to Mr. Edison and the Light 
Company are expressly secured to them. 

To this end Mr. Edison and the Light Company shall make 
known at the principal office of the Company, their acceptance or 
refusal, cither directly or by their Attorney at Paris duly 
accredited by them, aud within 30 days from the notification of 
the project of contract. which shall have been made by the 
present Company. 

This notification shall be made by registered letter. 

In case the International Company should desire, instead of 
exploiting directly itself, to make a total sale of one or of several 
patents for a part or for the whole of any one of the states, 
districts, or'towns of Europe, or the concession of licenses for a 
part or the whole of one of these countries, districts, or towns, it 
shall not bo valid without the consent expressly given in writing 
by Mr. Edison ond the Light Company. 


Mr. Edison and the Light Comimny reserve in consequence the 
right to accept or to refuse all contracts involving such sale or 
concession of license which the Company shall propose to realize, 
and consequently without such acceptation no treaty shall bo 
valid as has been above stated. 

The Company whenever it shall make concessions of the said 
patents, or of any of them, to other Companies, shall stipulate, 
unless the laws of the countries where the said Companies shall 
be constituted are opposed, that a third at iesst of the Board of 
Directors in the said societies shall bo named by the Inter¬ 
national Company, which engages itself with Mr. Edison ond 
the Light Company to reserve to them the right of naming at 
least one director to make o port of the third of which the 
International Company will have the right to name. 

In addition, the present Company shall reserve to itself the 
right of assuring that the purchasers or licensees of patents shall 
only use them to the extent of the concession made to the 
present Company. 

Seotion 4. 

Mr. Edison and the Light Company reserve to themselves the 
right of intervention with the International Company, or its 
assignees, in all suits against infringers of the said patents, and 
in all other legal processes relative to the said patents which the 
Society shall consider necessary to make, or which may be made 
against the said Company. 

• Section 5. 

The Attorneys of Mr. Edison and the Light Company stipulate 
in favor of their principals, that on account of their situation as 
inventors and proprietors of the patents brought to the Society, 
the right entirely personal and non-transforable of placing a 
veto on any fusion with any other society, or taking over or 


ceding the whole or any part of the property of the Company, 
or making any contract of participation with other societies. 

This right however will terminate, and without possibility of 
recovery, from the day that Mr. Edison and the Light Company 
shall cease to be in their own name proprietors of at least a 
fifth part of the parts of founder attributed to them by Artiele 
43 hereafter. 

From the day that Mr. Edison and the Light Company shall 
cease to bo proprietors in their own name of at least the said 
fifth part of the parts of founders attributed to them by 
Article 43 following hereafter, they will cease at the same time 
to have the right to the engagements made in their favor in 
paragraph 3 of the present Article. 

In all the Sub-Companies constituted by the present Company, 
tho majority at least of the shares shall be subscribed by the 
International Company itself, and these shares so subscribed by 
the Company shall not bo sold without the consent of the Light 

A person named by Mr. Edison and the Light Company as 
their representative, may always assist at all the meetings of the 
Board of Administrators of tho International Company, but only 
with deliberative voiee, and he shall also have at all times access 
to tho books of the Company, for the purpose of controlling the 
royalties and advantages stipulated in these engagements in favor 
of Mr. Edison and the Light Company. 

The Attorneys of Mr. Edison and the Light Company have 
furnished at the moment of the foundation of tho Company to 
tho undersigned notaries, a statement of the French and Foreign 
Patents brought to tho present Company by Mr. Edison and the 
Light Company, which statement made on a sheet of stamped 
paper of fr. 1.80, not yet registered, but which is to be registered 
at the same time as the present Artioles of Association, remains 
annexed to this, after having been certified ns a true copy by 
the said Attorney of Mr. Edison and the Light Company, and 
after tho mention of its annexation has been made as above by 
tho undersigned notaries at Paris. 

As to the Prenoli Patents, the registration of the present 
engagements is to bo made at the Prefecture of the Seine 
immediately after the registration of tlio Company, at the 
expense of the Company. 

As to the Foreign Patents, the International Company cl.arges 
Itself immediately after its constitution, with the diselmrge of all 
the legal formalities necessary to secure tlie execution of the 
transfer made to the present Company by the Compagnie 
Contmentale, Mr. Edison and the Light Company. 

In consideration of their contributions and co-operation, there 
IS attributed to Mr. Edison and the Light Company, first, a 
royalty of 25 centimes per lamp manufactured, employed or sold 
by the Company, or by its licensees, and a part of its profits as 
is set forth in Article 43 hereinafter. 

Chapter III. 

The Board of Directors will fix the conditions of the new 

The preference for subscription of the new shares is reserved 
as follows:— 

One quarter to the subscribers, or to their assigns, of tlie 
shares whieh constitute the first Capital of tlie 
Company in proportion to each subscription. 

One quarter to the Board of Directors in oifice at the time 
of the augmentation of the Capital, in order to allow 
it to provide for the interests of the service. 

[The Board of Directors wiil decide as to the manner of 
placing this quarter j] 

And one half to the proprietors of the shares constituting 
the social capital at the epoch of each augmentation, 
in the proportion to the number of shares possessed 
by each one of them. 

Persons who are not possessors of an entire share may write to 
exercise their right in the conditions that will be determined by 
the Board of Directors. 

Artioi,e 7. 

The Capital is fixed at thirty million francs, divided in 00,000 
shares frs. 500 each. 

shares are to be subscribed and one half 
paid up at subscription, and the present Company shall only be 
considered ns definitely constituted after the subscription of the 
total number, and the payment ns above provided of fifty per 
cent, of each subscription. 

Article 8. 

The Capital of the Company may be augmented from time to 
time by decision of a General Meeting of the Shareholders on 
the proposition of the Board of Directors. 

Article 43. 

The net product, deduction being made of expenses, con¬ 
stitutes the profits. 

From these profits there is to be taken:— 

5 per cent, for the constitution of the fund of legal reserve. 

The net profits, the foregoing deduction being first made, 
shall be distributed ns follows:— 

0 per cent, to the Shareholders as a dividend; 

8 per cent, to the Council of Administration; 

40 per cent, to the Light Company and to Mr. Edison 
in representation of their contributions to the objects 
of the Company, subject to arrangement between 

The remainder for a supplementaiy dividend to the Shan 

These proportions shall be invariable, whatever may be th 
gmentation of the Capital of the Company. 

Abtiolb 44. 

The part in the profits attributed to the Light Company an< 

Compagnie Continentale Edison 

This folder contains printed material issued by the Compagnie Continentale 
Edison. Organized in Paris on February 17, 1882, this company controlled Edison 
electric light patents in Austria, Belgium, Denmark, France, Germany. Hunzarv. 
Italy, Russia, and Spain. ® 

The following items have been filmed: 

1. "Premier Bulletin" (1882) 

2. "Second Bulletin" (1882) 

3. "Eclairage par Stations Centrales" [Bulletin No. 3] (1883) 

4. "Eclairage par Stations Centrales" [Bulletin No. 5] U883) 

The following item has not been filmed; 

"Statuts" (1882) [An annotated copy can be found in the Charles Batchelor 
Collection (Special Collections Series); an English translation can be found in 
D-82-038 (Document File Series).] 

Paris, Juin 1882. 

La premi6ro inslallation pour I’dclairaga d’un quartier 
do Now-York par la lumiSre Edison ost sur le point 

d’etre complblomont lonniri6o. Co quartior a prts 
de 300 hectares de superHcie. 

La Compagnio a fait I’acquisition dos immeubles 
situOs n“ 255 ot 257 Pearl street, un peu au sud do 
Fulton street pour y installer Tusino centralo do pro¬ 
duction des courants dlectriquos qui doivont circuler 
dans tout lo quartior au moyon do conducteurs sou- 

Los travaux d'installation ont 616 cxtrOmoment 
consid6rables. On pent les diviser on quatre parties, 
savoir : la miso en 61at des biltiments pour I'dtablis- 
soment dos machines et des divers services, la fabrica¬ 
tion ct lo montage dos molours machines-dynamos 
el autrcs apparoils6lectriques, la fabrication ct la pose 
(les conducteurssouterrains, enfin Inposo dos His dans 
les maisons. La promibro partio comprend la confec¬ 
tion des fondations on magonnorie, des ouvrages cn 
b6ton, la pose d’une carcasso on for ft deux dtages, le 
percement des vofttes sous les trottoirs cl les rues, 

. le montage do quatre chaudibres capables de pro- 
duiro 1000 chevaux-vapeur, rOlablissemont des luyau- 
leries correspondantos, do deux cliemin6s (de 1",50 do 
diamfctro, sur 24 m6tros do haul), de monte-charges 4 
vapour pour le charbon ot les cendres, de trans¬ 
missions de pompes el de sourilorio. Tons ces tra¬ 
vaux quo nous vonons d’6num6rcr sont compl6tcment 
tormin6s, il no rosto plus qu’4 installer les apparoils 
do ventilation ot dos asconcours 4 vapour. L’inslnlla- 
tion se composera do six molours, do six dynamos, 
ot de r6gulatours. 

' Les motours sortent des ateliers do construction 

— 3 — 

do la Southwark Foundry ot Machine Company do 
Philadelphio. Chacun a uno puissance nor'malo do 
125 chevaux-vapeur, puissance qui petit 6tro portde 
4 200. Oh dispose done d’uno forco totalo maxima 
de 1200 chovaux. Los six dynamos sont en construction 
(laris les Edison Machine Works, Goorck street, tiiow- 
York City, ot sont presquu nchev6os. Les apparriils 
do r6glago vont 6tre 6galemont termin6s. 

Gliacuno do ces six dynamos 4 vapour pfjso 30 ton¬ 
nes, soil un poids total do 180 tonnes. Lo poids de 
touiri la construction et dos apparcils dlectriqucs du 
.seul 257 Pearl street sera d’environ 250 tonnes, et se 
trouvern r6partio de manibre 4 no donner qii'iinc pres- 
sion moyonno do 1000 kilos par m6tro carr6. 

En CO qui concerno les conducteurs souterrains, les 
travaux sont pouss6s nussi rapidoment quo possible. 
Avant le 1" mars 1882 on avail pos6 3500 mbires de 
conducteurs principaux, ot dans lo seul mois de mars 
on cn a pos6 5000. Cc mois avail 27 jours do travail et 
quatre dininnches, mais la pluio lit perdro 5 jours et 
des causes diverses en firent perdro 2, do sorle quo 
I’on n’a travailld effectivomont que pendant 20 jours 
et une nuit. La moyonno par jour do co mois 6lait de 
190 mblres,la moyonno par journde do travail elfecilif, 
de 260 mblrcs; lo minimum quo I’on ait fait an un 
jour cst do 140 mbires el lo maximum do 3l5mblres. 

II resto pneore 4 poser plus de 5000 mbires do con¬ 
ducteurs principaux, puis les Iraversbes et les raccords 
dans les croisoments do rue. Ceux-ci, par parenlhbse, 
prendront plus de temps do pose par mbtre courant 
que les conducteurs eux-m6mes. 

L’dtablissomont dos fils dans Ics maisons osl ter- 
mind depuis Ic commencement do fdvrier. 

Nous avons compldtemcnt cmmdnagd ainsi 107 lo- 
caux dans Beckman st.; 166 dans Fulton st.; 75 dans 
John St.; 78 dans Maiden Lane; 97 dans William si.; 
46 dansFroutst.;68 dansNassau st.; 43 dans Pearl st.; 
36 dans Cedar st.; 28 dans Pino st.; 24 dans South st.; 
31 dans Ann st.; 12 dans Spruce st.; et quelques-uns 
dans d’autros rues do manibre A faire un total, do 
946 locaux prOts A fonctionner. 

Lo nombre do lampos prdvu estdo 7916 A (16 bougies) 
ct 6395 B (8 bougies] soil cn tout 14 311 iaropes.. 

Lcs lampcs clles-mOmcs sont flnics depuis des mois, 
emmagasindes cl toutos prdlcs A ronclionncr. 

La stotion centraie fournira do I’dlectricitd non sen- 
leinenl pour cos lampcs cl d'aulrcs encore, mais aussi 
pour faire fonctionner des asccnscurs, dcs montc-cliar- 
ges, dcs presses d’imprimcric ct dcs maciiincs dc 
toulc soric. 

II rcssort clairement do lout ce qui prdeddo qu’il 
resle trds peu do chose A fuiro, on dehors do la pose 
des cAbles soulerraius, pour quo ie premier quarticr 
de New-York soil complfetemont termind, el quo I’d- 
clairoge dlectriquo y commence. 

Inatallallons A Cbloago. 

Nous sommos en train do monter uno inslollalion 
Isolde A Palmer House pour dclairer la salio A manger. 

L’installation dans les magasins do Rand, M. Nally 
et 0" est vivement apprdcido. Les propridtnires disent 
quos’ils faisaient onlever nos lompes pour los rempla- 
ccr par lo gaz, les ouvriers les lour rodemandoroienl. 

Ils Irouycnt notro lumidre Irds commode pour md- 
langer dcs encres colordes, operation impossible A 
rdussir indmo cn plein jour. 

M. John V. Farewell a commandd deux installa¬ 
tions Isoldes pour lesbAliments d’assurance : Republic 
insuronce Buildings. 

Sdilluu ccnlralo on llllillnturo A Fall-River. 

Uno de nos petites inslallations monldo A Fall-River 
est oh train d’dclairer plusiours magosins, un bureau 
Idldgraphiquo et les snlles d’un club, lous ces locaux 
sont rdparlisdans denx pAtds do moisonsdiffdrenls. Ce 
sont les magasins do bijouterie do M. Bnmc'au; ceux 
dcdcnrdessdchcsde M.Sai’flicn<;ceuxdu lailleurBoone,' 
puis la quincuillerio do MM. Traflon cl AiUliony; lbs 
magasins do confection deL. D. Wilbur cl C"; lo bureau 

Idligraphiquo do la Western Union; doiix onlrdes do 
I'Acad^mie da Musique, onlin los corridors olsallos du 
Commercial Club. II y a on tout 120 lampos^ ol6 B, 
et les dynamos sent ik environ 130 mOtros des lampes. 

M. Spencer dans une communication datOe do Pall- 
River lo 4 Avril, s’oxprimo dans los lormos suivants 
au sujet do cello inslallntion. 

“ Hier soir nous avons acIievO les prcmi&rcs 150 Iiou- 
res de marclio do notro petilo station do Fall-River. 
Tous ceux qui so servonl do col dclairago on font le 
plus grand Ologo ct lo placent bien au-dessiis du gaz. 
Jl. Boono dit qu’il cst exempt do tous les inconve- 
nienls du gaz et qu’il donno Irois Ibis plus de lumibre. 
La plupart des mogasins reslent ouverls jusqu’4 dix 
licuros du soir. L. D. Wilbur et C- ebez qui 30 bees do 
gaz ont 616 remplac6s par 27 do nos lampes, m’out ra- 
conl6 quo lo gaz rondait lo sujour do lour boutique iii- 
lol6rablo bien avanl I’lieuro de fermelure, lant 4 cause 
de la clmleur quo du mauvais air. 11s no comprennent 
pas comment ils ont pu enduror le gaz si longtemps el 
no veulent so d6faire pour rion au mondc de la lii- 
mi6ro 6leclriquo. Lo l6moignage des autres consom- 
niateurs est unirorm6ment lo m6me. Dans les sallcs 
du dub on admire beaucoup I’eclairage surtout dans 
les cabinets do lecluro. Jo n’ai pas besoin do vous dire 
ii vous qui connaissez les frais d’enlrelion d’uno station 
combien celto lumi6re est dconomiquo; jo vous parle- 
rai seulement de la dur6e des lampes quo nous avons 
cu occacasion do v6rilier. Pour uno installation do 
120 lampes au lieu do 127 quo nous avons ici, la 
moyenne do 600 houros quo vous garanlissoz pour los 

lampos, pormottrait d’on romplacor 30 toules Ics 
150 houros, pourvu qu’on no ddpasso pas l’inlensil6 
luraincuso normalo de 16 bougies. Pourlant nous Id 
ddpassons ici cl nos lampos ont un pouvoir do 20 4 
25 bougies. Malgr6 cola nous n’avons cassO quo sopt 
lampes, dont deux dons lo mOme apparoil 11x6 au cadre 
do la porlo du magasin Sargent, et je soup^onno lo 
choc do la porlo de no pas 6lro 6tranger 4 cot accident. 
Un admcllant m6me quo ces lampes nient 616 misos 
hors d’usogc par le courant, notro moyonno osl en¬ 
core Irbs basse. 

Les appnroils I'onctionnont dans lu porfeclion, los 
dynamos sonl parrailomeut 6quilibr6cs, et enliOre- 
monl c.\amptcs d’6lincoIlos au commulatour. On a 
mesurb le travail du moleur el on a trouv6 17,1 che- 
vau.x-vapeur soil 7,3 lampos par cheval comptb dans 
le cylindro. Si I’on considbre quo tous los frottements 
du moleur et des machines y sonl compris, on pout 
afOrmcr sans crainlo quo los dynamos alimonlont 
Irbs bien 8 lampos de 20 bougies, par cheval comple 
sur la courroio. Notro installation a 6t6 visileo et in- 
spccl6o par beaucoup do manufacturiers de Fall-River 
cl par de nombreux visilcurs d’aulros locaIil6s. Tout 
le moiide on a fait lo plus grand 61ogo. Elio est con- 
lice aux soins d’un jeune Am6ricain inlolligenl, d'une 
vingtaino d'anneos qui ii'a aucuno poino 4 la consorver 
on bon dial ct 4 la faire fonctionnor parfailemonl. 

Celle pclilo iiislallalion fait mcrveillc nuprbs do coux 
qui rout vuo pour allircr dos partisans 4 la lumibre 
Edison «. 

Cliomlu lie for Oleolrique d'JEdlson. 

Venclrodi dernier, le professeur G. F. Barker de Phi- 
iadelphie ot le professeur H. Draper de New-York, out 
visitd Menlo-Park on compagnie do M. Edison, pour 
voyager sur lo cliomin do for dloctriquo. L’oxcursion a 
6t6 trfcs salisfaisanto. En co moment la ligno n’est 
installdo quo pour lo transport dos passagers, mais 
une machine et des wagons de marchandises sont nc- 
luellemont on construction. II s’agit do Irouvor exp6- 
rimenlalemeut le prix de reviont d’un Iransport 61oc- 
trlquo des marchandises. 

.tlipnruIlH de sArcIO Edhon conlro I’inceiidlc. 

L Electrician de Londres contient do nombrcuscs 
illusiralions des conducleurs fusihlos de M. Edison ct 
los ddcrit on ces termes : 

« Uno partie imporlante du sysl6mo de M. Edison 
est celle qui sauvegarde conire I'incendie. On congoil 
facilomont qu’il puisse arrivor quo, pour dos causes 
imprdvues, les conducleurs soient parcourus par un 
courant plus fort quo colui auquol ils dtaienl desUnds. 
Un paroll courant dchauirerait les cables el pourrail 
causer d'asscz grands dommages. Pour so mellro en 

garde conlro uno parollle dvonlualitd, JI. Edison, In- 
lorcale dans scs circuits uno jonclion mdtallique fu-. 
sible, qui fond d6s quo le courant altclnt uno inlensitd 
donnde. » 

InHlnllntlon A Sllllnntcr, Dlinn. 

M. Roney, le directeurde la partie do I’usino do Sey¬ 
mour Sabin ct C" d Stillwater, oil nous avons mould 
une do nos installations Isoldes, nous dit dans une 
letlre rdeente quo « les dynamos marchont admirablc- 
mcnl jour et null. Nous nous sorvons encore des 
mdmes bnlais qu’auddbutcl ilsont Pair tout neufs. » 
Cette installation so compose de deux dynamos Z ali- 
menlanl 280 lampes B, dont 30 so trouvent dons la 
demeure de M. Sabin d 350 mbtres de I’usino. Les 
dynamos ont coramened d fonctionner le 24 ddeembre. 

I,’Exposlllon do pnlais do Crlslal.. 

II y a 854 lampes au Palais do Cristal. 

Elies sont rdparties do la manibre sulvanto; salle 
de concert 380 lampes, sallc des reprdsentations 
200 lampes, boutiques 84, nef contrale 48, ontrde de 

la garo 47, domestic company 80, clmmbro des machi¬ 
nes 15. Ces lampes sont alimentOes par douzo pclilcs 
dynamos placOes 4 I’Otage nu-dessous ot dispos4os do 
tell sorto que I’une quelconquo peat Otro retirdo du 
circuit sans alTecler on rion la lumi6ro. Lo couranl esl 
porld des macliinos aux lampes par un seule cable. 
Cbaque circuit est muni d'un commalatourpermettant 
do fairo circuior lo courant ou de lo supprimor 4 
volonta, ot cliaquo ramiilcation est munio d’un coupe- 
circuit, apparcil doprotection, deslind 4 ouvrir automa- 
tiquoment le circuit cn cas d’accident. Aucun accident 
d’aucuno espfcco no s'ost d'aillours jamais produit. 

La sallo de concert (6clair6e au moyen do 380 1am- 
pos) est journollemont lo thfiatre de divertissomenls 
vnri6s ot souvent olio est bondOe. Bion qa’elle soil 
Irbs grande ot difllcilo 4 cclairer, tout lo mondo y 
Irouvo notre lumibre parraite. — Dernibrement, 4 uiie 
confbronco avec oxpbrionccs, faite d.ins cotte sallo, prbs 
do la moitib des lampes furont blointes ot rallumbes 4 
un signal du confbrencior sans aiTecter en rien les Iti- 
mibres restantes. 

La lumibro Edison est la seulo qui ne so soit jamais 
bteinto depuis le commencement de I’oxposition, ot 
n’ait ainsi plongb les visileurs dans I’obscurita. 

L’exposition Edison a btb visitbo par lo due d'Edim- 
bourg et sa suite, deux fois par lo due do'Westminster, 
deux fois par lo due do Sutherland, puis par lo prbsi- 
dent et lo Conscil d’administration do la C' du Midland 
Railway, par lo colibgo du gaz (300 membres) et par 
d'innombrables dblbgations de vilios otdtf villages. 
M. Johnson a aiissi do prendre I’engagemenl de 

donnor des expositions privbes du syslbmo Edison 4 
la Sociil^ des Arts, 4 la Ro\ial Societu, ot dans beau- 
coup d’aulrcs corps importants. 

VEngineering de Londrescontientdans son numbro 
du 17 mars un long compto rendu illustrb do I’oxposi- 
tion Edison au Palais do Cristal. II s’oxprime ainsi: 

« De lous les systbmos d’bclairage bicctriquo, reprb- 
scnlbs au Palais do Cristal, I’inslallation la plus com- 
plbto et la plus importante est cello de M. Edison, ou 
plulOt do la Edison Electric Light Company. Toute 
Fexposition do cclte compagnio entreprenante est 
caratbrisbe par la perfection des dblails et par son 
cOtb vrairaent pratique. On pout s’en rendro compto 
aussi bion par lo remarquabie bciairago des salie de 
reprbsentations et de concerts quo par la spicndido ins¬ 
tallation des machines bleclriques et des moteurs 4 
I’cntrbo des jardins. II est univcrsellemont rendu jus¬ 
tice 4 cello exposition tanl par les personnes compb- 
lentes que par les amateurs plus impartiaux. Grace 
4 son admirable simplicitb, 4 I’ingbniosilb des con¬ 
nexions et 4 la manibro do rbgularisor lo couranl, 
I’installation Edison pout btre considbrbe comme I'ins- 
tallation mbeanique la mieux comprise et la plus 
parfaiiement oxbculbe de-l’cxposition. 

6417. — Impriraerio A. Liliure, run il» Kleiinii, 0, 4 PoriJ. 


Daus Ics chombros do Malt par csomplc, la plus petite 
quautitd dc gaz influo d'uuo mauitre tout b fail nuisiklc sur 

TYz7T377~ ■ ~ 

Compagnie Gontinentale Edison 

PARJS. - 33, Avenue de I'Opdra. — PARIS 




Chateaux, Magasins, 



M. CiiAKLES FORGES, president. M. J.-F. BAILEY, adm.-delcgiie. 
M. Aug. MAGiNIN, vkc-presid. M. Louis RAU — 

MM. Charles BATCHELOR, odministrateur. 

' Edouard LEBEY — 

Georges LEBEY - 

Elie LliON 
Theodore PUSKAS 

Ainsi qu'il utait faoilo do lo pi'dvoii' iiotro Aclairago rAn- 
lisocliaquojour do iioiivoaux pi’ogi'is dans la rigion si indus- 
li'iollo du Nord. 

Nous avons fait ii Roubaix, oii les usincs do ll.M. MoUe 
ot Meillassoux ot do M. Louis Lo/obvro avaicnt d6ja adopt6 


bitation, son jardin, oto.; cctto souls iustallaiion suffirait 
done A ddmontrer quo la lamps A incandcscenoo so prAts aux 
usagos los plus rarlAs ot remplaco partout avantagsusomont 
los ancions syslAmos d'Aclairago. 


Venise. — Lo. nouveau CotoniOcio Vonoziano (:10I) 
lainpos A). 

Castelnuovo. — Lo nouvel dtablisscmcnt do MM. Crospi 
ot O' (60 lampes A). 

As?a-Corao. — La fllaturo mteiniqno do M. Antonio 
Oltolino, etc. 

Societe Electrique Edison 

This folder contains printed material issued by the Societe Electrique Edison. 
Organized in Paris on February 17, 1882, this company marketed isolated lighting 
plants in Austria, Belgium, Denmark, France, Germany, Hungary, Italy, Russia, and 
Spain under license from the Compagnie Continentale Edison. 

The following items have been filmed; 

1. "La Lumiere Edison" (1884) 

2. "Liste des Etablissements Eclaires par les Lampes Edison" (1885) 





dixi£he Edition 



nicessaire pour faire marcher 12 machines ^l^c- 
triques du type de 1,200 lampes. Ccia reprdsenlc 
une force d’e.nviron i,5oo chevaux alimemant 

14,400 lampes A, ou 28,800 lampes B. 

; -De I’usine cehtrale rayonncht cn tons sens'de 
gros conducteurs en cuivre appeWs conducteurs 
principaux, qui se bifurquent & dfolte et 4 
gauche comma des conduites d’eau ct de gaz, 
pour longer tomes les rues. On peut les poser 
avantageusement dans les dgouts. La maisoh'de 

_ LA LUMifiR E. EDISON ,, 

avantnges tris sdrieux, tant au.point de vue de 
la santd que du bien-dtre, . . ■ . . 

Un bee de gaz, on le sail, • absorbe autant 
d’oxyg4ne que deux persohnes, puis, outre les 
flots d’acide carbonique et d’oxyde de carbone, 
ce poison violent qu’il ddverse dans Patmosphire, 
il^ apporte tous les gaz deie'tires qui proviennent 
des impuretds de la houille; il rdpand ainsi des 
quantitds considdrables d’acide sulfurcux, un gaz 
qui saliflcsmurs, noircit les peinlures, et auquel 



I est des applications 
sodcialcs h la lumiii 

chaleur.que ie gaz, n’inBue pas sensibleraent 
la temperature, ct tout en donnant une lu- 

CXf. ,3 0 f 


SflCffi llEmiOUE EDISOH 

Soclete anoDyme as capital de Un Million de fraocs 
PARIS. — 8, rue Qaumarlin. — PARIS 



Chateaux, Magasins 

TiitoEs. nsm, BiisSBa, hopitjd.l ciFis. etc. 


M. Aik. CHATAUD, prfsidenl. 

LfiON, Klca-prialdea,. rau, adn,i„k,„,',..MA-.,S 

MM. J. F. BAILEY, adml,il«iraiciip 

. * GaoBsas LEBEY _ 

ciuBua ponoEs, * _ 


Ea Vicosta SEnuniEB - 

Societe Industrielle & Commerciale Edison [not filmed] 

This folder contains printed material issued by the Societe Industrielle & 
Commerciale Edison. Organized in Paris on February 17, 1882, this company 
manufactured electrical equipment for European markets. 

The following item has not been filmed: "Statuts” (1883). An English 
translation can be found in D-82-038 (Document File Series). 

Deutsche Edison Gesellschaft 

This folder contains printed material issued by Deutsche Edison Gesellschaft. 
Organized in 1883, this company marketed the Edison system of electric lighting in 

The following items have been filmed: 

1. "Das Edison-Gluehlicht,.(1883) 

2. "Elektrische Beleuchtung von Theatern ,.." (1884) 

The following item, also found in D-83-037 (Document File Series), has not 

"Memorandum of Agreement" [incorporation papers] (1883) 

Das LiohtbeclUrfniss hat sioh allmttlig gosteigert und dom 
Verlangen naoh verinolirter Helligkoit iat dm-oh dio jetzt all- 
gomoin gewordenen Arten der B6letio]itmig Koolimmg goti’agou. 
Gleiolizeitig aber liat dio Vermolirniig imd VersUtrkmig der 

Lichtfiuellon Uebelstilude im Gof'olgo, wolche dio modorne 
Gesimdlieitsloliro aiif Gnmd strong wisscusclmftlicher Untor- 
aiioliuiigeii ioststellto. Es smd dios: dio Vorderbniss dor 
Lnft in gosolilossouon Eauinon dnrcli Er%vilrnniiig und 
duroli Zufuhr von sciiUdlichen Prodnkten dor Vor- 
brennung, sowio dor naclithoiligo Einfluss dor go- 
brttuohlioheu Liolitquellon auf dio Aiigou. 


Beleuchtung und Luftverderbniss. 

Dio Ueberhitziing gesohlossener Ellumo diiroh Gasflammen 
ist oiiip /II bokaiinto Timtsuclio, ids (lass sie inolir ills oinos 
Hinwoises bcdftrfte. Niir iniig bier darauf aufmorksam gomaoht 
wei-deii, diiss der Aiiiciithiilt in solchon aborbitzton Eilnnion 
und dor Aiistritt in das Preio, namentlieli im "Winter, den 
menscliliclien Orgnnismiia einom "Woohsol von Toinporiiturniiter- 
scliiedoii nnssot/on, dor in liiliiiigen Eilllcn die Vornnliisaung 
zu Ei-killtuugen und ICriinkhoiten wird. Eino ganzo Reiho der 
Wintor-Sieclitlitlmer muss dor hohon 1. emporatnr ziigosoliriebon 
Worden, wolcher ,der Monsoli in den zwar genilgond orhellton, 
nbor ziigleicli Uberhitzton Eilnmen zeitwoilig sick aussetzt. 
Unsere Tlioator, nnsero Oonoertadle, dio Lokalitttten der 
Eestaurants, dor Cates und der Biorhiiuser, wio nicht minder 
dio Gesollsoliaftsi-anrao der Privatliiliiser, loiden sammt und 
sondei's an Uoborhitzung der Lnft duroh dio gebrttuohliohe 
ktlnstliche Belouchtung, welolio daher den hygienisoben An- 
fordemngen dor Jetztzeit in dieser Beziebung keineswegs ent- 
spriobt. Dio Erfabrung jedes Einzelnen wird das eben Gesagte 

Deutsolio Edison Geaollscliaft. 

Doiitsolio Edison OoBellBClinft. 

Nioht minder sohlldlioli nls die zu starke Erwilrmung dor 
Liift in gesolilossouoii RUumon ist die Vordorbniss doraelben 
dnroli die Vorbrenmingsprodukto, wololio jodo Plnmmo, 
eiuorlei ob Korzen-, Oel-, Petroleum- oder Gasflammo, iinaus- 
gesetzfc entwickelt. 

In erstor Linio kommt die KoblonsiUiro in Betmcht, die 
ilbernll entstolit, wo Vorbronnuiigen stattfinden trad die niclit 
.1... voii deu ziii- Boiouolitirag dionondon Plniiiiiioii orzongt 
wild, soudoniauoli von doin Monseboii, dor, so lango oratbraet, 
eiiioii Vevbronmragsprocoss nntorliillt nnd mit joder Ansatbranng 
Kolilonsilnre ansbanolit. In oiiiora niit 5[oiisclieii gofilllten nnd 
durch violo Plammen orlenolitoten Ranine tvird dabor die Lnft 
insoferu veisolilecbtert, als Mensolieii raid Plummoii deraolboii 
Snnoiutofr ontziolioii, don sie in Kuhlonsiliire iraisetzon, wolclie 
tier Liifi, zunlekgogoboii winl. 

Dassii kommfc, class beide, sowolil areiischen, wio Flaimneii 
znr Steigerirag der Temporatnr beitragen, da aitch dor Mouscli 
fortwillirond emeu Theil der in seiiiein Orgaiiismus erzeiigtou 
AVilrme an seine TJingebnng abgiebt. 

Das Unwolilbefindon raanclicr Peraonon in gesclilossenon, 
ilberfilliton nnd ilborhitzton Rilnmon, wolclios sioli von tinver- 
Iconnbarem Unbehagon, bis znr wirklichon Olinmacbt je nacli 
der Constitution des Einzolnen stoigerii kiinn, lint seino Uranclie 
in dor kilnstliolion Belonolitmig. Dio LiiR dor Arbeits- 
sille, in denon violo Plamnion breiinen, ist oil. doinrt, diiss sie 
schadigond mif dio Geaiindlioit dor Arboitor oinwirkt, iliiien 
dio Spannkraft niinmt, wololio iliro 'J'liiltigkoit orlbiilert, raid 
sie olond maolit. Dasselbo gilt von HfirsiUon raid nndoreii Vor- 
siunmliingsorton mid soinit orgiobt sick, d.iss dio Arbeit, diis 
Ringen nnoli AVisaon nnd Erkonutnias raid .solbst dio Erlioltrag, 
welolie Kniist raid gesollige Voreinigirag gowilbmi solleu, iu- 
sofem ala sie des durch dio Ubliclio kilnstlielie Beleuchtiing 
verlilngerton Tnges bedtu-fen, mit Aufopfeiimg des Wobl- 

befliidens trad gar liilnfig dor Gesimdlieit orkanft werden 

Znr Ablilllfo dieaor Dobolstttndo ist seit langer Zoit dio 
nnsroicboiido Znrnlir von f'risolier Lnft dnroli Ventilation vor- 
gesclilugou wordon. Es hat sioli abor lieransgestellt, dass oiiie 
aiisroiclioiide Voiitilntion iragemeine Soliwiorigkeiteii darbietet 
raid diosolbo imr dnrcli masoliinello Einriolitinigon erzielt 
wordon kann, wolclie mit Koston verbunden sind, wosslialb 
diesolbeu bis jotzt iinr in einigen Tlioateni nnd lllinliolion 
Zwccken dionondon Lokalen gefunden werden. 

Ganz anders nnd vortlieillinf'ter gestnlton sich jedooli die 
Verliilltnisse, wenn gcsclilossene RlUime durch Liohttiiiollon er- 
Iciichtot woi-don, welcho nnr geringo AA'^ilrnie entwiokeln nnd 
weder Siiiierstoff verbraiichon, nooh dor Lnft Ver- 
breniiiiiigsprodukto zuftthren. Alsdann ist es anch iniSglieh, 
durch verhaltni.ssiniissig oinfaohe Vontilntionsvoikohriingen den 
orforderliclien LniWcohsol zii boworkstelligen iind naoh dieser 
Richtnng liin don Anfordorimgon dor Hygiene Rechnung zii 

Eine Boleiichtiing, wolclie dio ebon genrinnten Vorthoile 
bietet, liofert das oloktrisoho Glilhlioht. 

Ehe wir demselben iinsero speoielle Anfinerksainkeit widinen 
nnd seiner aiidorwoitigon A'^orzUge gedonkon, ist es notliwendig, 
den Einfliiss dor gobrilnchlichon Boloiiclitniigsarten aiif die Liiit 
hinsichtlich dor Erwilrmung nnd der Vornnreinigiing zn be- 
trachtoii. Beiiiorkt soi iioch, dass nnter dem Aiisdnick ,|Calorie“ 
diojonige AVilrinemonge zn verstohen ist, wololio oinein Kilo- 
gramm AVasser ziigofllhrt wordon muss, nm dasselbo inn einen 
Grad Celsius zu erwilrmen. Eine Calorie gilt als AVitrme- 

Indem die versoluedenen Liolitqiiellen in Beziig nnf die 
von ilmen entwiokelte KoliIen-HiUii'emoiigo mid Wttrinoeiiilioiton 
(Oalorieii) vergliolion woideii, orliitlt man oiiien Mnssstnb filv 
iliren melir oder minder soliUdliolioii rosii. gilnstigen Einfliiss 
im Sinne der Hygiene, nnoli deron Leliro boreite die Liift ala 
iiiigeaund gilt, welolio inelir ala 0,0007 odor 0,001 Kolilonsiliiro 
enthult. Dio diircli den Lebonaiiroeeaa oinoiigto Koblenaiiiire 
botrilgt bei oinom or.wncbsenen Mnnno iiiigefillir 201, wiHirond 
ein gewOlinliolior Gaabrenner von 8—10 Normnikorzon Leiiclit- 
kraft etwa SO I entwickolt, ao daas oiiio oiiizigo Gaaflnmiiio gegon 
vierinal aoviel baiioratoll vorbraiiolit mid Kobiciiaaiint lii.furt ala 
ein Menacb, Ein diircIi hiindert aololier Gnsflaniiiieii orloiicliteter 
Baum ist duller so zu betraobten, ala wenn sioli vierlnindort 
Mensolieii in demselbeii oliiio Boleiiclitmig nufhioUoii, nnd 
roobnot man die Gasflammoii in kloiiiuii SiUeii mid Zimmem 
in gleiober AVeise als Poi-soncn nils, so ist man niebt niir im 
Stiiiide, sieb ein iiiinilbenides Bild von dem Liiftverbrniicb mid 
der Liif'tverderbiiiss zti mnobon, soiidorii wird fmdon, dnss die 
meisten Gesollscbnitsrilumo bei stnrkom Besiicbo ineistona tlber- 
filllt sind, wonn die Zubl der Gnsflaimnon init vier miiltixilicirt 
mid nls atbmeiide Jlenseben betracbtet, der Znlil dor nmveaendeii 
Personeii biiizu nddirt wird. 

In Ulmlicber Weiso verbalton siob die (ibrigeii Boleiiclitmigs- 
arten, mit Aiisnabmo des eloktrisobon GKUiliehts. Die fflr die- 
aelben erforderlioben Liiftmengoii, ivolobo ziigefilhrt wei-den 
mtissen, woiin der Greiizwertb der Koblen.sttiire von 1 pro 
Taiisend niobt tlberaobritton werdon soil, sind aiis den folgonden 
Eesultaten*) genauer TJntorsuobiingen eraiobtliob. 

1) Kerzonboleuobtung. Eine Stearinkei-ze welebn in 

bodarf staiidlioh oinor ZufUbrung von 80 obm Lnft. Es werdon 
nngoillbr 106 Calorion entwickolt, welolio das orforderlioboVen- 
tilationsqiiantiim von 80 obm urn 12,4 Grad orwilrmon. 

2) Gasbolouolitung. Ein Elaobbronnor von 10 Normal- 
koraon Liobtstltrko vorbraiiolit stUndliob 127 1 Gas, woboi 86 1 
Eoblonsttiiro orzeugt woi-den. Dieso 86 1 bonOtbigen 172 obm 
Liift. Diircli don Brenner worden stUiidlicli 865 Calorion er- 
zoiigt, welolio die oinziifUbrendo Luftmongo nm 17,9 Grad or- 

3) Eloktriscbo Bogonliebt-Bolouobtuiig. Naob den 
Aiignbon von Pontaiuo vorbronnoii bei oinor oloktrisoben 
Bogonliolitlampo, welolio ein gloiobmilssigos Licbt von der Stftrko 
von 100 Sobnittbronnoi'n giobt, stUndliob 6 om Koblonstftbo 
von 1 qcm Quorsolmitt. Es worden also im Maximum 12 gr 
Oder ungefalir 22 1 Kolilonsiliiro orzeugt, so dass stUndliob niir 
44 obm Liift liinziigofilbrt zu worden braiiobon. 

4) Eloktrisolios Glilbliclit. Da boi dieser Beleuobtung 
niobt diiroli oinon vorbronnendon, sondoni vielmebr diirob oinen 
glttlicnden, in oinor Glasgloeko luMiobt eingesoblossenon 
Koi-por (KolilonbUgel) das Licbt entstobt, so findot oino Er- 
zciigimg von Kolilonsiliiro niobt stalt, mid ist dabor oino Liift- 
ziifilbning fttr die Boloiicbtimg in diosom Pallo ilborbaupt niobt 
erfoi-dorlicb. Eomor ist die AVilrmeontwickelung dor GlUb- 
lampon eine aussoroi-doiitliob geringo. Boi oilier sttliidlicbon 
Erzeiigiing von 100 Nornialkorzon diircb GlHlilicbt worden nur 
290—636 Calorion — dagogon durob oinon gewObuliolien Gas- 
brenner 12160 Calorion — ontwiokolt. 

Voratohendo Zablon bowoisen liinsiobtlich des Binflusses 
dor kttnstlicbon Boloiiobtmig aiif dio Liift in gesobloasenon 
Blliunon soblagond dio Doborlegonboit dor oloktrisoben Bolouob- 
tung, spocioll dor GlUblicbtboloiiobtung. Bei letzteror findet 

Doutaolio Ediaon Geaollaclinft. 

cine Entwioklung von irgond welolion Qason tlborhnupt niolit 
atatt, imd erwttrmon aioli die Lampen ao wonig, dnas man aio 
bequom naoh einigen Stimdon Bronndauor mit der Hand an- 
faason imd sogar in 'Wnssor tauolion kann, olnio daaa sie zor- 
api'ingon. Die goringe Wili'meontwiokolmig dor Gltthlampen 
hat auoh Prof, Dr. Weinliold in Cliomnitz duroh einen aelir 
interesaanten Veraiioh naohgowieaon. — Br benntzt zn dem- 
aelben einen Stroifen Papier, ivelohor mit einem Anatrioli von 
Jodkiipferqneokailbor voraelion iat. Dioae, bei gewOlinlichor 
Temperatiir liellrotlio Snbatanz ftobt aioli bei Erwilrmniig anf 
60—70“C. dunkelbraun und wird bei AbkiUilnng wiedor rotli, 
wenn sie niolit zu weit tlbor die goiiaunto Temperatiir erhitzt 
ivurde. Wiekolt man niin dieaon Streifen iim oino brennende 
Gliihlampe, so wird or laiigsam brauu mid nach dom Abnohmon 
sofort wiedor liollroth. wilhrond oino kiirzo Bcrflhrmig mit dom 
Cylinder der Gaslampe liinroiclit, den Parbstoff danemd zn 
zerstOren und eine Ittngere Berahning, selbst das Papier zu 

Zu dem vorliegenden Capitel hat Dr. Berdinand 
Pisoher aua Hannover anlilsslioh der am 16.—19. Mai d. J. 
stattgehabten Sitzungen dea Vereins fill' Gesundheitstochnik 
und dea Vereins fttr Offentliohe Gesundheitspflcge hbchat werth- 
volle Beitrilge*) goliefert. Derselbe hat mit 16 verschiedenen 
Beleuohtungsnrten eingehondo Vorsucho angestellt und ftlr 
jedo den orlbrdorliohen Kraft- bezw. den Materialbedarf, die 
erzeugte Menge an Wasser, Kohlensauro imd Wilrme bestimmt 
und aua den gefundenen Zahlen die nebonstehende hOchst inter- 
essante Tabello zuaammoncestellt. 

Deutaclie Ediaon Gesollaelmft. 

2 DonUolie Edison GcsollBchaft. _ 

[nstitute yorgonorainonen vergleiohondon Untorsuclurngon 
swisohon Gnsbolouohtung imcl oloktrisolior Boleuclitnng wiirdo 
die Tomporatur imd dor Kolilonstturogolmlt dor Lnft gloicli- 
zoitig im Pnrkot, im I. «nd im III. Range (Gallorie) ormittolt, 
iind wurdon dieso Bostimmungen sowolil boi Icorom Hanso, als 
aucli wakrond Tbeatervorstolluugon vorgenommon. 

loll kann vororsfc nm- aiif dio Eesultato dor Tomporatur- 
Boobaobtung boi boidon Belonobtimgsarten Gowicbt logon. 
Dio Kolilonsauroboobaolitungen babon namontliob boi be- 
sotztem Hauso oin Eesnltat ergobon, dosson Constatining nocb 
oine grOssero Anzalil von Versuobon nnd an mebroron Pnnkten 
des Theaters erbeisoht. 

Boi leerom Hauso waren nie mebr als 10 bis 15 Personon 
auf dor BUbne und- im Zusobauon-aum zugegen, dor Vorliang 
blieb offen, und wurdo sowobl dio BUbno als aucb dor Zu- 
sobnuorraum tlber 1 Stundo long in vollor Belouchtnng orhalton. 
Dio Teraperatur ivurde an den gonannton drei Stellon von 6 
zu 5 Minuten beobaohtot. 

Bei besetztem Hauso waren naoh Ausweis dor Tbeaterkasse 
jedesmal zwisclien 500 und 600 Porsonon im Zuscbaiiermumo 
anwesend, und wurdon die Tbormometer von 10 zu 10 Minuten 

Die Tomperatur stieg sowobl boi leerom, als aucb boi bo- 
sotztem Hauso vom Minimmn am Anfang mit ganz unbe- 
deutondon oinzelnon Gegensobwankungen bis zum Maximum 
am Ende, und findon sioh dio Zablen nnd die Differonzen 
zwisoben Maximum und Minimum in beifolgonder Tabelle 
(s. Soito 16) angegoben. 

Es gobt daraus zur Evidenz borvor, ivie verbOltnissmfiasig 
wenig die Luft durob dio elektrisobo gegonllber dor Gasbe- 

Doutscbo Edison GossllBchaft. 

loucbtung erbitzt wird. SelbstverstamUicb ist dor Hntorsohied 
bei leorem Hauso am gi'Ossten; boi besetztom Hauso koraraen 
noben dor von don Zusebauom und Mitspiolonden entwiokolton 
Warmo nooh manoborloi StOrungon vor. Dor Zusobauei-raum 
ist vor Beginn dor Vorstollung voll boleuobtot, die Buline niobtj 
wUbrond dos Aktos wird die Bolouobtung des Zusobauorraums 
sobr roduoirt und dio auf dor BiUmo naob Bedtlrfniss ge- 
stoigort; im Zwiscbonakto ttndert siob das Vorbaltmss wiodor 
ins Gogontlioil urn, und lasson sioh dieso Umttndonmgon 
<iuantitntiv niobt gut vorfolgon. 

Zum genauei-on Vergleioli oignen siob daber strong ge- 
nommen nur dio Eesultato boi leerom Hauso, wo wUbrond dor 
Vomuobadauor an dor Stilrke dor Bolouobtung dor Bttbne und 
dos Zuscliauerraums niobts geandert wurde und dor Vorbang 
immer aufgozogon bliob. 

Aus dioson Vorsuobon siebt man, dass bei loorom Hauso 
dio Differenz in dor TemperaturorbObung im oborsten Range 
boi Gasbolouohtung 10 Mai (9,2:0,9) grosser ist als boi 
oloktrisolior Bolouobtung. In don untoren Eaiimon des Hausos 
werden dio Differonzen selbstvoratandliob Ideiner. 

/I nnli bei bosetztem Hauso botrilgt die Differonz nocb 
0 Grade Celsius, indom auf dor Gallorie boi Gasbolouobtung 
29° O. (= 23,2° Edaiimur) uiid boi eloktriscbor Bolouobtung 
23° C. (= 18,4° EOaumur) beobaobtot ivurdo. Boi oloktrisobor 
Beloiiclitung war dio Tomporatur im HI. Eango (23° 0.) niobt 
oinmal so boob wio boi Gnsbolouobtung sobon im I. Range. 

Es darf noob darauf aufmorksam gemaobt wordon, dass bei 
don Versuohen mit Gasboleiiobtung die Tomporatur im Eroien 
niodriger war, als boi don Vorsuobon mit oloktrisolior Be- 
louohtnng, so dass also letztore jedenfolls niobt im Voi- 

DeuUoho Edison OeBellBohafl. 

Bei besetztem Hniise botrug dns beobaobtete Kolilensaure- 
Maximuin boi Gasbeleuobtung 2,3 pro mille 

„ elektriBolior Beleuobtung 1,8 „ „ 

Dio TJrsacben dos sobeinbovon Widorspraobs Bind jedenfallB 
mobroro. Dio KoblonBilure Btnmmto nus zwoi Quollon, die niobt 
iminor gloicbmilssig floason: einmal von den Gaaflammon, dann 
von den Monsobon im Znaobauerraum und niif der BOlmo. Alct 
und Zwisobonakt bringen aowobl auf dor Bflbne ala auob Im 
Znacbauerraiun unoontrolirbare ■Woohaol bervor. Fomor andert 
aioh dor Luftwocbsel im Znaobauerraum, jo naobdem aiob 
LogentbOron After odor aoltonor, mebr odor -woniger weit 
Aifnen und soblioaaon. Fomor bowirkt die Temperaturdifforenz 
zwlsobon Theater und froier Luft, z. B. die grAsaore Hitze bei 
Gbiabeleuobtung, naturgemUaa oine verstArkte Ventilation, -wozn 
namontlicli aucb dor Gaa-Kronlouohtor im Zuaobauerraum boi- 
trttgt. Boi elektriacber Beleuobtung iat entapreobend der ge- 
ringeren Tompoi-aturdliforonz zwisobon innen und ausaon auob 
ein geringoror Luftwoobaol bodingt, weabalb die von den 
Mn'inMinn erzougto Koblonailure niobt in dom Maaase wio bei 
dor Gaabelenebtung entweiebt. Dio bei Gaabelenobtung ver- 
Btarkte Ventilation wird auob die Uraaobo aein, wosbalb boi 
beaetztom Hanao dor Dntei-aoliiod dor Tomperaturon zwiaobon 
Gas- und eloktriaebor Beleuobtung niobt ao graaa gefunden 
■wnrdo wio boi leerem Hauae. 

Ana don vorliegenden Unteranobungon laaaen aiob mit Be- 
atimmtbeit zwei Soblilaae zieben: 

1) daaa die eloktriaobe Beleuobtung im bobon 
Grade die Uoberbitzung der Luft im Theater ver- 

2) daaa aio nllerdinga an und ftlr aiob niobt im 
Stande iat, die Ventilation dea Tbeatera entbebrliob 

Sill maohoii, dass sie aber eine goriiigore Vontilatiou 
dSsselbon orfordort, als dio Gasboloiichtiuig, boi' 
welobor dio Voiitilation iiioht niir gogon dio Luft- 
verdorbniss diireli Mensolion, soiidorn aiicli gogon dio 
Hitzo iiud dio Vorbronnungsjn-odukto dor ITlammo go- 
riohtot worden muss, ivillirend sio os boi oloktrisolior 
Bolouobtiing niir mit doin Athoin nnd dor Haiitnus- 
dtlnstiing dor Monsolion iind doron Folgen zii tlnin lint. 

Dr. Max v. Pettonkofer, 
k. golioimer Rntli nnd Professor. 

Mllnolion, dan 18. .Tuiii 1883, 

Tnbolle zu vorstobondora Giitnchton 
von Prof. M. v. PettenkoFer. 

Besonders ist nus dem Gutaoliten dor Passus zu berflok- 
siobtigen, welobor botont, dass dio elektrisobe Glflhliobt- 
boleuobtiing oino geringere Ventilation orfordort, als dio 
Gasbelouobtung. Was far dio Tbeator gilt, bat auob 
Geltnng fttr ondore Lokalitaten, iind somit ergiebt sioh, dass 
die Glablnmpo nllein im Stniido i.8t, eine Boleiiobtung go- 
scblossonor llaunio zu ormaglicben, welobe bygienisoben An- 
fordorungon entsjiriobt. 

Douts oho Edison GoaoIIsolmft 


Beleuchtung und Schadigung der 

Goiiauo .stntistisoho Erliobiiiigon Imboii i!\voirollo.s orkonuoii 
ran, class clio Zalil dor Kuizsiclitigon, nnmoiitlicli anf hulicraii 
iranstalton, im Znuolimon bogrinbii ist. 

Anf Grand diosor Erbobnngon sind die Uraaclion dor Zu- 
mo doi Kni/siolitigkoit aufge.sncbt wonlon imd Mi'Uol 
liUfo in Vorsoblag gobraoht. 

Es ist unzwoifclhaft, class bosonclors clio maiigolliafto Bo- 
iffoulioit dor gobritnobliohon Liebtcinollon nnd doron nii- 
onollo Bonutsicng don moisten Selmdon bringon, nnd loitot 
ibalb anob Prof. Hormann Colin*) (Broslan) soinon am 
Mai d. J. anf dom bygionisobon Congi-cssc zn Berlin gc- 
enen Vortrng tlbor ktlnstlicbo Bolonobtnng, clom wir in 
vorliogonclon Kapitol violo bflobst !ntovo.on-to 

JDoutsolio Edison Gosollsciiaft. 

■nroloho inBozuganfVerbossorang’der kflnstliobon Bolonobtnng 
in frilboror Zoit von sobr boi-voiTagondon Milnnorn gostollh 
wnrdon, mtlsson wohl sobr goringo gowoson soin. Als Bowois 
diono oin wonig bokaimtor Vors cloa gi-Osston dontsobon 
Dicbtors. Gootbo sagt wOrtlioli in soinon Sprilobon in Eoimon 
(Band m, S. 18 Ootta’sobo Ansgabo 1856): 

.■Wttssto niobt, was sio Bos.soros orfiudon kOnnton 
Als wonn dio Liobtor obno Putzon bronnton." 

Eino gi-Ossoro Eriindnng botroifs der kflnstliobon Bolonob¬ 
tnng mlnsobto also oin Gootbo niobt. Dio Dimkolboit dor 
Korzo aoboint ibu wonigor gonirt zu babon, als clio Unbocpiom- 
licbkoit dos Putzens. 

"Wolobo Ansprflobo stollon wir dagogen bonto an die kflnst- 
liciio Bolonobtnng? Eino Pntzsobooro finclot siob, bOobstons 
nocli als Cimositilt in oinom Altortbnmsmnsonm; dio Talg- 
licbtor sind vorbannt; dio Naobt wircl clnrob das oloktrisobo 
Licbt in Tag vorwandolt, nnd immor noob bomflbon siob dio 
bodontondston Miinnor, dio kflnstlicbo Bolonobtnng zn vor- 

Mit diosom onormon Aufscbwnngo clorToobnik dor kflnst¬ 
liobon Boloncbtung sind abor clio bygionisobon Untor- 
.snclinngon flbor don Einflnss dor vorsobioclonon kflnstliobon 
Boloncbtnngsarton anf nnsor Atigo loiclor gloiobon Sobritt 
dnrcbans niobt gogangen." 

Dio Hygioiio vorlangt von oinor dom Ango niobt sobadon- 
don, kflnstlicbon Bolonobtnng, class sio*) 

1. oino binlllngliobo Liobtmengo ontwioldo, 

2. niobt zu groU soi, 

*) AViol und Onolim, Ilcllicli. dor Ilygiono. 1878-1880. S. 427. 
Scliarmonn-Evorsbusch. „DiD Hygioiio dor Aiigon.“ Proissolirilt. 

Dontaolio EdUoii Oeaollaoimft. 

3, duroh ‘Wttnnostralilmig sioli iiicht minngonelim bomork- 
bnr mnclio, 

4. oin stefcigos iind gloiolimilssigcs Lielit gobo niul cndlicli 

0. oiiio mUgliclist goi'iiigo Liif’tvcrscliloelitonmg licrbeifflbro. 

■\Venn mioli ziigostniulon worden muss, dnss die boidon 
eraton Fordoningen diirob die jotefc gebrilncliliclisto Licbt- 
qtiollo, dns Gasliolit, genflgond orfflllt wordoii. da dnssolbo moIu- 
betrilolitliebo Liobtmongon zu liofem im Stando ist, dorcn In- 
teiisitilt duroh Miloliglastollor odor Glockoii gomildert wordon 
kann, so imiss jedooh lunsiclitlich dor droi lotzton Piinkto die 
Gnsbolouclituiig als duroliaus uiiliygioiiisoh bozoiclmot wordon. 
Edison’s Bolouohtungssystoin ist os nun, wolclics gilnzlicli froi 
von don obon bozeiohnoton Ifilngoln dor jotzt gobi-anclilicbon 
Boleuchtungsarton, dagogon mit allon den Vorailgon ausgo- 
rUstet ist, wolcho dio Hygiono von oinor gnton Belouclitnng 

Dio Dntorsuohungon dor Augonttrzto habon oigobcn, 
dass mit Abnahino dor Liclitintonsitttt dio Sehscharfo 
sinkt und zweifollos dio Kurzsiclitigkoit, nainontlich 
dor Sohuljugond, vor allon Dingon in dor sclilocliton 
und unzuroiohondon Bolonchtung dor Sclinlrilume 
iliron Grund hat. Dio in dom obon citirtou Vortrago mit- 
gothoilton Untorsuohungon dos Prof. Hormnnn Cohn 
zoigon, dass dns oloktiisoho Lieht in Eolgo seiner grOsserou 
Holligkeit gegonUbor dom Gasliohto dio Sohsohilrfo urn ‘/s—V- 
oiliOht, wesshalb doi.solbo nuoh soino Ansicht dahiu nnsspricht, 
dnss dio Einftlhruug dos oloktrisohon Liciites in don Schulon 
wold nur oino Erngo dor Zoit soi. Sehr wichtig sei anoh dio 
Boobaohtung von Carp in Marburg, dor gofundon hat, dnss 
bei Kurzsiohtigon dio Sohsohilrfo boi schlechter Boleuchtung 

Dontsclio Edison Gesellsehaft. 

Boztlglioh dor Erngo nnoh dom Minimum dos Liohtes, bei 
wolohem das Augo nooh ai'boiten kann, stimmon die Ansiohton 
dos Prof Cohn mit donon dos franziSsisohen Gelohrten Javal 
tlboroin, wolohor sagt: „I1 n’y a done jamais trop, il n’y a 
jamais nssoz do lumidro nrtifioielle”. So Inuiet dann eine 
weitoroAufgnbo dor Hygiono: „Mnn sohnffe dom Arbeiten- 
don mdgliohst viol kttnstliohos Lioht." 

Besondors naohthoilig fttr dio Gesundheit ist dio dom Gns- 
lichto entstrOmondo Hitzo, wolcho oino Austroolcnnng dos Auges, 
Erhitznng dos Kopfos, Blutandrang nnoh domsolbon mit folgen- 
dom Kopfschmorzo bowirkt. Verauoho von Prof. Cohn habon go- 
zoigt, wiosohrnuoh in diesem Punkto dns olektrisoho Glflhlioht 
dom Gnsliciit aborlegen ist. Bringt man z. B. oin borusstes Thor- 
momoter 10 om ontfemt von oinorGnsflnmmo von 20Nonnnlkerzen 
und oin zwoitos obonsolohos Thormometer in derselbon Entfer- 
nnng vor oinor zwnnzigkonsigen Edison-GlUhlampo an, so steigt 
bei oinor Zimmortomiioratur von 14” nnoh 10 Minuten dns Ther- 
mometor in dor Nilhe dos Glilhliohts urn 12,8", das in dor Nilhe 
dos Gaslichtes dagogon urn 23,5", also nnnahornd um dns Dop- 
polto! Dor gleiche Verauch wurdo boi oinor Ziminorteinporator 
von 12" wiedorholt, und zoigten dio Thormomotor entsproohend 
11" und 22,0". 

Hiorauf wurdo mit oinor empfmdliohon Thermosttulo ge- 
mossou, dio ans dom physiknlisohon Institute dor Univer- 
sitat Broslau stnmmto, und doren Aussohlttgo vorher nioht 
mit dom Tlioi-momotor vorgliohen wordon wnren. Die 
Thormosaulo gab boim oloktrisohon Liohto ih 20 om Ent- 
femung oinon Aussohlng von 46", dagogon bei Gnslicht yon 
72". Dr. Gratz, Privntddoont dor Physik in MUnohon, hat 
spator dio Thermosttulo gonnu nuf Thennomotorgrade libor- 
tragon, imd os stollto sich hornus, dass diese Aussohlttgo ganz 
gonnu 3" und C" C. ontsprnohen, also wiodor dns Verhttlt- 

Deutaoho Edison Gosollsolmft. 

Dentsolio Edison Gosellsclmfl. 

niss 1; 2 war. Damns folgt, dnss das G-asliolit boi 20cm 
Entforniing doppolt so stark erbitzt, wio das G-ltlli- 
liolit. Mit wcitoron Untorsuobungou in dor Eutfemung von 
Vsm ist Prof. Colin nooli bosoliilftigt. Dorsolbe ist dor An- 
sioht, dass bei diesor Entfomung dio Differonzon noob viol 
molir zn Gunston des oloktrisolion Liolitos nusfallon dtlrftoni 
donn in diosor Entfomung fillilo man boim Glflbliobt gar koine, 
boira Gasliolito abor nook oino ganz botrilchtliobo Wilrmo. 

Dio Empilndliolikoit dos Angos gogon Wltrrao, berichtot 
Prof Colin woitor, soi tibrigons boi verscbiodenen Porsonon 
nuoli oino solir vorsobiedono. Vor 16 Jnbron linbo or dio 
Aiigon von 132 Soliriftsotzem goprilft imd 51% kurzsiolitig 
gofimdon. Boi diosor Gologonlieit lioss or sie abstimmen itber 
dio Bolenolitung, dio ilinon am wilnsolionswertboston soi. Nnr 
72 stiminton fllr Gas, dio andoron 60 zogon dor goringoron 
Hitzo wogon Cel und Potrolonra vor. 

Von 72 Ulirmnoliom onvioson sick niir 0% als kurzsiolitig. 
Dio Ulirmackor mtlsson boi ikron foinon Arboiton dio Elnmmo 
ganz bosondors nako, — auf 26 solbst 18 cm — an dns Ango 
bringen, und in dor Tkat stimmton 64 also % dor Ukrmnckor 
fill- Ool odor Potroloum, da das Gas ikr Aiigo zn sokr nus- 

Eatilrliok kOnno man ja dio Hitzewirknng vomngom, 
nllein bokanntliok nimmt dio Holligkeit im Quadrat dor Ent- 
fomiing ab, und man mflsso also oino doppolto, und solbst oino 
viorfaoko Mongo von Lickt bmiiolion, wonn man dio Hitzo 
vormeiden und dock gloioko Holligkoit knbon wolle. Dns olios 
soi abor boi Gltlkliokt niokt nOtkig, do os ebon fast gar 
niokt erhitzt. 

Dieso und andoro Vorsuoko — wir orinnem hier an das 
obon angofakrto Gutaokton von Prof v. Pottonkofor—sowie die 

zalilreioben praktisoken Anwondungen des Edison-Lioktos 
knbon zur Gonkgo bowioson, dnss dio Wilrmooutwioldung dos- 
solbon oino so goringo ist, dnss diiroli diosolbo oin sokUdliokor 
Einiluss auf don monsokliokon KOipor niokt stattfindot. 

Boi ErOrtonmg dor Erago, wololion Sokadon dio zuckondo 
Boloiicktung dom Ango bringt, sngt unsor mokrfaok orwiUintor 
GowUkrsmann: nWeim oino Elamnio zuckt. so wooksolt dio Bo- 
loiioktimgsintoiisitUt dusserordontliok soknoll. Dio Notzkaut ist 
abor for sokr kloino Lioktnntorsckiode sckon sokr ompflndlick, wio 
viol mokr, wonn dio Untorsokiodo sokr grosso siud. Wonn mm 
dio lutonsitat so anssorordontlick solmoll wooksolt, wio boi don 
ziickondou Elaiiunon, so wird dio Notzknut auf dns Poinlioksto 
goroizt, imd dio Arboit ist nuf dio Dauor unmOgliok. Woloko 
Voi-ttndomngen daboi in dor Netzkaut vor siok gokon, woiss 
man nock niokt mit Sickorkoit, violloickt muss nuck dio Accom¬ 
modation siok daboi fortwttkrond andem, abor das Eiiio stokt 
positiv fost: „Das zuokoudo Lickt ist unortrilglick“. 

Ein woitoror Vorzug dor Glaklnrapon liogt nun nbor gorado 
dnrin, dass sie absolut rukig und gloickmttssig bronnon, 
wllbrond dio gobriluoklickou Gnsflammon fortwalu'ond ziiokou 
und ilaokorn. Dio Eiiko dos GlUlUioktos in Gomoiusckaft 
mit seiner etwas weisseron Enrbo knbon oino nusserordont- 
liok glanzondo Liokhvirknng zur Polge; nussordom tkut 
das Liokt don Angon wokl, vorloikt den Fnrben oinon be- 
sonders warmon Ton und verilndert diosolben woit wonigor 
als dos Goslickt. Dio sokr eingekenden Vorsuoko von Prof 
0. E. Moyer in Breslau (s. Contralblatt fUr Elektroteoknik) abor 
die Eorbe des elektrisokon Licktes geben kierfar don Beweis. 
Deisolbe kat bostimmt, in wolokem VerkUltnisse die Holligkeit 
des elektrisokon Bogen- und Glaklioktes und dos Gnslicktos 
zn derjenigen dor Sonno stokt, wonn die letztere so woit ab- 

gosohwilolit isl., dnsa clio Hdlliglcoit ties golben Lichtos in alien 
vier Liolitgnollou dieselbe ist. 

Gnaliolit Eloktr.GltlhlioIit Eloktr. Bogoiilicht 

Eotli.‘1,07 1,48 a,09 

Gelb. 1,00 1,00 1,00 

Qrdn. 0,43 0,02 0,99 

Blaugriln .... — 0,29 — 

Blau. 0,23 0,21 0,87 

Violett .... 0,15 0,17 1,03 

AouaserstesViolott — — 1,21 

„iran erkennt aus diesen droi Ziililenroilien sofort", bemorkt 
Prof. 0. E. Meyer zu vor.steliondor Tabello, „tlnss alle drei 

Liehtor im Vergleioli mit tier Sonne rOfclilichgolb erMchoinen 
mllssen, da sie einerseits roich an rotkon, andrerseits zn arm 
an blauen Strahlen sind, nm ihroii Gelialt an gelbera Lickt zii 
Weiss zu ergitnzen. Von don droi Liclitorn ist das Goslickt nm 
stUrksten roth gofUrbfc, das Bogonlioht ist, wie boreits frtther 
bemerkt wurde, im Vergleioli mit der Sonne gelb mit einem 
Stick ins EOtklioko; das Glilklickt steht zwisohen beidon in der 
Mitte. Hierauf bornlit der angenekme Eindrnck, den 

ansttbon, woira sio froi von allou tlblon Noboiiwirkuiigon i 
wonn iiiolit ilio Ei'hitemig uml Vonlorbiiiss dor Luft don pli 
siologisolion bi Utzon doa Liditoa anflioboii imd zu Scliiuid 
innolioii. Da dio cloktriaoliu Bolonobtuiig jmch dom Ediao 
Systoiii idlo joiio Soliildlielikoitoii aiisaobliesat, ao vordieiit i 
don Voi”/ug vor silmnitliolien BolonolitnngKiirton, mid os dilrl 
<lii.s AVoblbcliagon, wclolioa don Aufontliidt in Bitmnon bogloib 
dio iiiifc oloktriaolion CTlnhlampon orloncbtot aind, oino Erklttnii 
durcli dio Entdockungon Cliriafciuni’a findon. 

Von voiaoliiodonon Goaiclitaininkton iinsgoliond, komiiii 
Prof. V. Pottonkofor und Prof. Colin zii oin mid doiiiaolb( 
KoaiiUiito, nilinlicli dio Boloiiobtmig diiroli oloklrisol 
Glillilainiion. aowobl in Boziig anf dio nllgoinoino Hygieuo, a 
auob nuf dio HyKiono doa Aujrc.s. Vortlioilo biotot. woloho all. 

Doutsclio Edison Gesellsclinft. 

gi'osso Brandungltlok 1876 im Bvooklynor Theater, hoi dem 283 
Monsohon miter dou Trilmmeni des Gehiludes begraben warden, 
duroli Entssfindung oiner Decoration an der Coaliasonlampo ver- 
anlasst wardo. Nook in ansor Aller Gediiolitniss ist dor acbrook- 
liohe Eingthoater-Brand in Wien, wolclier 460 Peraonon das 
Loben kostote; dorsolbo ontstand darch TJnvorsiclitigkoit boim 
AnzUndon dor Soffittonflainnion. Aber niclit nnr die offonen 
Gasflammon gebon za Brilndon Veranlassang, violmebr ist nach 
oino ganzo Eoilie dorselbon darcli Gasoxplosionon vonirsaclit 
warden. Dio aaf dor Bilhno bofindliclien, moist oflen liegonden 
GasrOliron sind verbitltnissmilssig leiolit einor Boscbildigang 
ausgesotzt; sobr haafig entstobt Peaeragofalir darch oin Un- 
diclitwordon odor Zorroisson der SehliUiclio, mittolst doren don 
■Vorsotzstttokon das Gas zagefiihrt wird. Eine dorartigo Gas- 
explosion gleich naoh Beginn der Voratollang hatto den Brand 
des Theaters in Nizza (1881) zar Eolgo, bei dem 160—200 Per- 
sonen das Loben oinbiisston. 

Angosichts diosor Thatsachon sollto man nicht mehr zOgem, 
in alien den Fallon, wo die Boleaohtang oino Fonersgofnhr 
herbeifUliron kiinnte, die gofnhrloso, ganzlich fonersichere 
Glilhliohtboleachtang von Edison oinznfahi-on. Dio 
Edison-Glilhlampo bestoht aus einor horinotiseh verschlossonen 
laftlooron Glasglooko, weloho im lunora eincn mit don Strom- 
zaloitangsdrUhten vorbandenon Bilgol aas vorkohltor Bambas- 
fasor onthalt; diosor KohlenbUgol orglitht and stmhlt Licht lias, 
sobald oin eloktrisohor Strom ihn darohiliesst. Infolgo dioser 
Constraetion dor Gltlhlampen ist os nieht raoglich, dass sioh oin 
. in ihro Nttho gobrachtor, loioht bronnbai-or KOrpor ontztlndon 
kann. Zorbrioht dio Glasglooko darch Zafnll, so orlischt dio 
Lampo infolgo Vorbronnons des Kohlonbligels so plotzlich, 
dass oin Entzttndon in anmittolbnrer Nttho bofindlicher, leicht 
bronnbarer KOrpor, wio Vorsaeho gozoigt habon, nicht ointiitt. 

Doutsoho Ildison Oosollsoimft. ‘ill 

Anch darch dio Leitangon kann Feuor nicht ontstehen, 
sobald die Anlage sorgfWtig and von einera mit dom Glllhlioht- 
systom gehOrig vortraaton Untemehmor aasgoftlhrt wordon 
ist. Um oin Glfthondworden dor Leitangon in Polgo zu starken' 
Stromes zu vorhindom, sind in gowisson, darch die Erfahrung 
gonna bostimmton AbstOndon BloidrUhte in dioselbon oingo- 
sohnltot. Lange bovor nan an irgond einor Stollo oino Erhitzang 
dor Loitangon in Folgo Diirohgangos za grosser Elektricitats- 
mengon eintritt, schmilzt dor dioser Stollo zanadist boiindlicho 
Bloidrnht, wodaroh dor Strom selbstthtttig antorbroohon 
wird. Darch Vorsaeho kann man sioh loioht von der zuvoi^ 
lOssigon Wirkang diosor Bloioinsohaltangon llborzoagon. Wonn 
Dr. Schilling in soinem Joai-nalo filr Gasboloaohtang Brttndo 
nnfiUirt, welcho darch oloktrisoho Bolouohtung horboigofillirt 
soin sollon, so handolt es sioh doit ontwedor um Anlagen, 
welcho vor dom , Bekanntworden dor Siohorhoitsbloioinsohal-. 
tangou gemacht wordon sind, odor am soloho, dio von Untor- 
nelimom nasgofilhrt warden, wolohe, in mangolhnftor Nnoh- 
alimnng des Systems Edison’s, dio von lotzterom orfandonon 
Bloioinschnltangon nicht bonatzton. Das von Dr. Schilling 
weitor gohogto Bcdenken, dass boi ansbrechondom Feaer dieso 
Boloachtang sogloich gilnzlich vorsngo, dilrfto hinlilllig soin, da 
dio mit imprilgnirtor Baamwollo amspounonou Leitangsdrahto 
nicht mehr geillhrdot sind, nls dio Eohrloitimgon dor.Gas- 
beloachtang, soiidorn im Gogonthoil oino ziomlich bodoatondo' 
Erhitzang vortrngen, so- dass die Zoi-stOrang der oinzolnen Glllh- 
lompen nar in doiri Masso nllmUhlioh orfolgon kiinnto, wio das 
Fouor am sich groift, wahrond boi dor Gosbelouchtung sofort 
der Haapthahn geschlossen werden muss. 

Nobenbei miige aaoh onvtthnt wordon, dass oino Gefnhr fUr 
das Loben der Monsohon bei Anwondang dor Glflliliohtboloach- 

Doutsolio Edison Goaollsclialt. 

timg giinzlioh ausgesohlossen ist, da eleltfcrisolio StrOmo von 
sololier goringon Spannung in Anwondnng Icommen, dass man 
solbst Leitungon, wololio luinderto von Pfordokrilfton flbor- 
'tragon, beiUbveu Itann, olrao oinon morklioben Selling zu er- 

Ueber dioPrage derPenersiclierbeit dor olektiiselien Beloncb- 
tung bat sick Dr. Worn or Siomens ira „Centnilblntt fflr Tcxtil- 
Industrie“ niisfilbrliob goitnssert. Boi dor Wiclitigkoit dieses Qnt- 
aobtens tboilon wir die intoressnntosten Pimkte dessolbou mit. Es 
beisst in demsolbon u. A.: ... n^io Gusbolenobtiing bleibt ancb 
boi sorgfUltigstor Anlngo slots in boiioin Grade fenorgofUlirlicb — 
ganz abgesehen von dor direotou Lebonsgefnbr, — denn jodor 
offengelnssene odor undiobt gowordonp Gasbnbn knnn oino 
lebens- nnd feuergefUbrbcbo Exiilosion bervorbringon. Das- 
selbo gilt von undiobt gewordonen Robrleitnngon. Dagegen 
ist oino solido iind angolegto oloktriscbo 
Boleucbtnng fast gilnzliob ungofttbrlicb. . . . InRttiimon, 
in weloben viele bronnbaro Eildon odor sonstige Stofib unibei> 
fliegon, odor in welobe bronnbaro DUinpfo eindringen kOnnen, 
wird oin Saobveratilndiger koine oifenen Plammen —• soien es 
Gas-, Potroloum- odor oloktriscbo Plammon anbringon. Eilr 
aolobe Eilumo oignen siob bossor dio Glflblicbtor. Boi diesen 
ist die Peuersgofabr boi riobtiger Anlage wirklicb boinabo 
versobivindond klein, da dor lonobtendo KOi-per bermetiscb 
in oiner Glaskugel oingesoblosson ist. -In Eaiimon, in weloben 
bronnbaro Stoffe mit den Wiindon dor Glaskugol in Boi-Obmng 
kommen kOnnon, knnn man aussordom Doppolglockon nn- 
wenden,' um oino Entztlndung an den boissen Wttnden dor 
Glaskugeln zu vorbindem. Boi einor nicbt mit Sacbkenntniss 
nnd grOsster Soliditttt ansgofillirten Glttblicbtanlngo knnn nllor- 
dings oino Gefabr dndureb eintreten, dass dio Loitungen nicbt 
riobtig bereobnot sind und siob orbitzen, odor doss sie nicbt 

Denteclio Edison Oesollscliaft. 

siober eingebettet nnd befestigt odor scbleobt isolirt sind. 
Endliob ancb dndnrcb, dass nicbt genilgende Sioborbeitsvor- 
ricbtnngen angobmcbt sind, die vorbindern, dass der elektrisobe 
Strom starker worden kann, wie os dio Drabto vertragen. In 
alien diesen Eallon kann es vorkommen, dass Drabto sicb in 
goffibrlicbor Woiso orhitztin odor dnrob zufUllige BerOiimng 
zwoier Diflbte an dor Bortlbnmgsstollo olektrisobe Plammen 
siob bilden, wolobo zOndon kOnnen. Das Alios dnrf boi oiner 
gut nnd mit Saobverstilndniss gomaobten Anlage aber gar 
nicbt vorkommen, so ivenig wio es vorkommen daif, dass Gns- 
leituiigon undiobt odor dem Zorbreoben etc. nusgosetzt sind. 
So ricbtig os demnaob ist, dass scbleobt angelegte elektrisobe 
Beleucbtnngsoinricbtnngeu fenergeiilbiiicb sein kOnnen, so un- 
riobtig ist es, das System der eloktrisoben Beleuohtung 
flborbaupt fill- feuorgofUbrlicb oder gar filr fouergefUbrliolier als 
dio Gasboloncbtnng zn orklaron!...“ 

Dos Piiblikum wird bioniacb also dio AnsfUbrnng von Be- 
leuclitnugsanlagen, gerade wie dio anderor tecbniscber Anlagen, 
nimsolchen Dntoi-nebmoni anvertrauen dOrfen, deren Konntnisso 
nnd Erfabrungen oino voile Gewabr far guto und solido Aus- 
fOlimng bieten. Leider lasst siob nicbt verkonnen, dass bei der 
scbnollon Entwickobing des olektrisolion Boloncbtnngswesens 
siob diesem nenon Industriozwoigo Manolio zUwandten, denen 
dio erforderlicbo Saolikonntniss feblte. Dio loiobt erldaiiiolien 
Missorfolge derartigor Unternobraer tragen dann leiobt dazu bei, 
cine an siob guto nnd lebonsfUbige Sacbe in den Augon des 
Pnbliknms beninterznsetzen. 

Die Prago der Branobbarkeit und Zwookmassigkeit des 
elektriscben Glablicbtcs wird bisbor violfaoli im Zusammenbango 
mit der Prago der Tbeatorbeleuobtnng verbandelt. Dud dies 
ist anob sobr natttrlicb; denn dio ontsotzlioben Unglaoksfttlle 
dor letzten Jaime baben dio Teobniker gezwungen, nicbt mm 

Vorsiolitsmnssregeln- gegen die bestolienden Bolouclitangsarton 
zu orgroifon, aondem auoh darau zu donken, die bisliorigon, solir 
gefalu-vollen Boleiiobtungsmittel durob ne«o imd zwockont- 
aproolieiidore zu oraotzen. Einon sobr wortkvolloii Boitrag 
liofort ein Gutaohton dor Egl. Akadomio doa Banwoaona, 
welckoa aua Voranlaaaung dor Kataatrbpho im Tlioator von Nizza 
im Auftrago doaMiniatora dor Offontlichon Ax'boiton ab- 
gegobon wurdo. Auf don oraton Tlioil doa Gntacbtons, wololior 

aioli auasolihoaaholi auf dio Anordiinnnmii iin.l i.„_ 

jonao wilcliat boi auagobroobenom Eeuer die Gefttbrdung dor 
lacbanor mit dor Anzalil dor letztoron, im Allgemeinen alao 
it dor GrOaao doa gefiUlten Zuaobauerraumea. 

Ea wird dealialb zur Vorbiltung von UnftiUen dio fouor- 
dioro Aniago und Auaatattung der Tlioator um ao dringondor, 
grOaaor dio letztoron eind.“ 

In dom Gntaohten xvird zunitohat der Eraatz aller Con- 
inctionathoilo aua Holz durch aolcho aua Eiaen und wo dieaoa 
.niolit zulUaaig iat, dio Imprttgniruug allor Holzer und Gewebe 
gefordort, vor alien Dingon aber dio Beaoitigung doa offe- 
in Iiiciita ompfolilen, da letztoroa naoli don atatiatiaclien An- 
ibon von EOlsoli (a. obon) boi don willirond dor Voratellung 
igonnenon Brttndon boinalie auanaliraaloa dio Voranlaaaung 
iwoaon iat. Nach doraolben Quollo geliOren auob alio Theater, 
olclie kurz vor Einlaaa doa Publiouma durcli unvoraiohtigoa 
ntzUndon dor Gaa- odor Oelflammon in Brand geriethen, zu 
dor roioli vortrotonon Kategorie derjeuigon BQhnenanlagen, 
welclio dnrcli aclilocht behlltetoa offonos Liolit zu Grunde 

Ea hoiaat dann in dom Gutaohton weiter: 

„E3 kann diea nicht (ibonaaohen, da auf dor BUhno dio 
roaao Mongo leicht ontzUndliohor Gegenatilndo mit oinor 
roaaen Anzahl ofToner Elammon durohaotzt iat, um dom Bo- 
Irfniaa oinor hollon Bolouchtung Gontlgo zu tlmn. Dieao 
lammon inttaacn wonigatona zum Tlioil abwochaolnd ontziliidot 
ad gelOacht und den beabaiohtigten ktlnatlerisohon Efl'eoton 
itaprechond an voi-sohiodeno Stollen dor BUhne gobraoht 
erdon. Jedo falaoho odor vonmgUlokto Bewogung oinor 
ouliaao odor oinea anderon fouorfangendon Gegonstandoa, ,jodor 
moll einoa Bowogungamoohaniamua kann oino BerUhrung 
itzandlichor Gogenstttndo mit offonon Elammon, mithin dio 
Gefahr oinor Entztlndung herbeifilhron. Nooh woaentlioh or- 

Peutsohe Edison Gesollsobaft. 

liOht wird dieso Enteftndungsgofolii' dureh dio Amvondiing des 
Leuoktgdses. Erfolgt dakoi auch dns Aiixilndon der Elammen 
auf die verkaHmesmUssig elokorste und gefakrioseste 'Woiso, anf 
elektrisohem Wegoj so kanu dio Ztlndimg dock versagon. Dann 
strOmt das Gas unverbrannt aus, nnd dor nUcksto Zllndmigs- 
versuok bewirkt oine Explosion, dio anch ontforntoro Gogon- 
stando direct in Brand stookon odor sio andoron oflbnon 
Liokten zusokleudem kann. Fast nook grOssor ist dio Gofabr, 
wenn dio Entziindnng nur an einzolnen Stollon vorsagt, okno 
dass dieses Versagon sofort wakrgonommen wird. Bonn bildet 
sick flber einzolnon AnsstrOmungsOfl'nungen oin Gnsgomisch, 
welokes sick oxplodirond ontzilndet, sobald os dio oiTonen 
Flammon orreiokt, wodurok dio Fouersgofakr direct auf wait 
entfemte Punkte ilbertragon wordon kann. In gleickor AVeise 
kiinnon Besokadigungon dor weit verawoigten Gasloitnngen ge- 
fekrliok wirkon. 

Dieso Vorgange geben POlsek Anlass zu dem Atissprncke, 
dass „das allgemein und in alien civilisirten Landom gUltigo 
Verbot von offenen Flammon an fenorgoiillirlicken Orton — 
anffallend genug — fttr Tkoator ganz ignorirt wird, obwolil, 
soweit bekannt, in keinom Staata dieso Ausnakmestollung dor 
Tkoator durok oin Gesetz odor durok oino Vorordnung go- 
stattet ist.“ 

Die Beseitigung des offenen Dicktes ans den Tkoatem, 
so lange in letzteron loiolit ontzflndlicke nnd aufilammende 
Gegonstando in grOssoron Mengon bonutzt wordon, mnssdoskalb 
als oin unbodingtos Erfordorniss dor Feuorsickorkoit 
bozoicknet warden. Das Halfsmittol kiorzu bietot das 
eloktrisoke Gl(lkliokt“. 

Hack einer kurzon Bespreoliung dor Construction dor Gltlk- 
lampen und ikrer speoioUon Vorzflgo fflr Tkeaterbolenoktungs- 

Deutscbo Edison OcssUsobat't. 


zwecko heisst os in dem Gutackten waiter; „Unter Berilok- 
sicktigung allor sckon bewahrten gUnstigen Eigonsokaften dieser 
Belouoktungametbodo muss man sick jedock unbedingt dahin 
entsckeiden, dass dieselbe als geoignot und berufen ersokeint, 
die Fenersgefahr der Sohaubilkno auf ein Minimum zu roduoiren, 
okno jede Beointrilchtigung des Zweokes der letzteren. 

Obsckon dio Beleuoktung des Zusokauerraumes der Tkeater 
wait weniger Gofabren mit sick filhrt, wio die der Bilhne, er- 
Hckeint os dock rathsam, auck filr diesen und tlberkaupt fflr 
das ganzo Haus zur oloktrisckon Beleuoktung flberzugeken. 
Ausser der gi-iisseren Siokerkeit gegen Feuersokaden bietet die 
elektrisohe Beleucbtung des ZuschaueiTaumes nook den grossen 
VortlieU, dass dio AVllrmeentwickolung verkflltnissmassig bei 
ilir selir goring ist, und dass vor alien Dingen die Luft durok 
dio Boleucktung niokt verdorben wird. Das Ventilationsproblem 
klsst sick bei allgemeiner elektrisoker Beleucbtung daker leickter 
lOsen als bei Gasbeleucktung." 

Zu nnsrer gi'ossen Genugtkuung seken wir, dass nun auck 
dio Pouon'oraichenmgs-Gesellscknften anfaugen, sick von der 
gi-osseu Fouersicherkoit der oloktrisohen Glflhlioktboleuchtung 
zu tiboraengon nnd daker koffentlick bald allgemein dio 
Prilmien bei Anlagen mit Glflklicktbeleucktung kerabsetzen wer- 
den. DieMagdebnrgor Feuerversiohorungs-Gesellsohnft 
Unssei't sick in oinom ikrer Haupt-Agentur-Circidare flber den 
jetzigon Stand dor Beloucktungsfrngo u. A. folgendermassen: 

„Von alien objectiven Gefakrsmomenten, denon das Feuer- 
yersickennigsgeschaft, besonders bei Docknng industrieller An- 
lagen, untorworfen ist, nimmt zweifellos dio Beleucktungs- 
gefahr den keiworragendsten Platz oin; ihr begegnen wir 
flberall in mekr oder weniger drokender Gestalt, jo nack dem 
Character der veraicherten Eisiken. Es ist deshalb in erster 




(Volleingezahltes Capital: 5,000,000 Mark) 


Lei'pziger 3tr,assd96. ' 


Stiidten, Strassen, offentlichen und Priyatgobiiudcn, Theateni, 
Conccrtsalen, CaKs, Ilfitels, Krankehhauscrn, Fabriken,.,Bahn- 
h5fen, Bergwerken, submarincn Bauten, Ilafen, Werften, Loucht- 
thurmcn, Schiffen s. w. ; . 

.. Einrichtung 

von Gentralstcllen zur Lieferung von clektrlschcm Licht. 


; DER . . 


• -n. ' 


Beleuclitiiiig von Theatern 




Beleuchtung von Theatern 



Julius Springfer, 

Die Reform der Theaterbeleuchtung. 

Als das Lonohtgas dio olirwOrdigoii Ool-Lampeu aus dou 
Tlieatera vordrttngto, glaubte man mit dem nauoii Liohto oine 
anssoTordentliclie Vorbesserang eingefiUirt zii babon. lu der 
That bot das Gas oine Eeibo von wesentliobon Vortlieilon in 
. soinor beqnomen Handliabnng nnd in der loichter zu erziolendou 
grOssoron Liolitmenge :■ Das maiisame Instandbalton der Dampen 
kam in AVogfall, man konnte sowolil deii Ziiseliauerraum wie 
dio Babno milbolosor vordunkoln nnd orliellon, das Anzundon 
derFlammon orfolgto rasohor, dio Eoinliobkoit war oine grussore, 
dor Znscliauerraum orscluon glUuzonder und prunkliafter nnd 
dio scenischon Vorgilngo erbiolton oine intonsivore Belonolitnng, 
als dio mildo Flomino der Ool-Lampen ibnon zu gobon voriuoobfco 

Dass nun abor gleiclizoitig mit dioson Vortlieilon oine 
Anzalil von Eaobtlioilon oingefilbrt wurde, ilborsab man in dor 
Freudo ttbor dio iiouo Emmgonsobaft, nnd da oine Rilckkobr 
zu dor alton Boloucbtmig nicbt miigliob war, filgten siob das 
Pnblilmm, sowio dio Sehauspiolor, den TJobolstUndon, die das 
Gasliobt im Gefblge batte, nnd ertrugen die Unannelimliolikeiton 
mit Resignation, welclio ans dem Gedankon liervorging, dass 
eino Abstellung der Uobol nun einmal zn don frommon 
VVltasclieu gebOre. 

Zu dieson Uobelstaiidon zilblt in orator Linio die Ueber- 
bitzung dor Tboator durob die Gnsflammon. Nur oinigo der 
wenigen non angelegten Theater sind mit Ventilationsvorriob- 
tungon vorselien, die oino Herabmindortmg dor Tomporatnr 
dnrch Zufidir abgokiliater Lnft ormOglioben, dio Ubrigon, naob 

8 __Drotnolio £(1^011 Goa^lsolittt't. 

altom Stile eingeriohteten, sind geblieben, was sie waren: 
Eaume, in denen die Temperatur vonStunde znStuiide 
bis zur Unertragliohkeit steigt. Gegen das Ende einer 
Oper, eines Sobaupieles gleiohen die Theater, namentliob bei 
milder "Witterung, fast den gehoizten Eaumen eines rOmischen 
Bades, und in der warraen. Jahreszeit, wenn dieEeisen beginnen, 
die Stadte von Fremdeu besuobt werden, welche ungom auf 
den Besuoh des Theaters verziohten, gebietet die Nothwendig- 
heit den Sohluss der Kunstinstitute, welche naturgemass eine 
grosse Anziehungskraft auf das reisende Eubliknin ansUben und 
znr Eremden-Erequenz wesentlioh beitragen mOssten. 

Geistiges und kOrperliohes Unbehagen beeintraohtigen 
niolit nur den Genuss, sondem sind im Stande ilm aufzuheben, 
sobald sie iiberhand nehmou. Es ist ferner cine durch vielfaohe 
Erfahrung bestatigte Thatsaohe, dass hohe Temperatureu er- 
sohlaffend auf den Kerper und den Geist ivirken. In den 
sUdliolien Gegonden zwingt die Hitze der Mittagszeit den 
Mensohen zum Einhalten der Arbeit und maeht die Siesta, 
welche dem Nordlander niolit als BedUrfniss erscheint, zur 
unumganglioheu Nothwendigkoit, obonso wie dor EuropOor in 
don Tropon von der Spaniikraft oinbttsst, welche ihm in don 
gomassigton Broiteu eigen ist, 

In den Thoatern, deren Temperatur die Qasbeleuchtnng- 
tlber die normale, dem Organismus geoigneto, erhoht, in den 
Konzortsalon, ivelohe an demselben Uebolstande loidon, vvird 
von dem Zusohauor und HOror' Aufmerksamkoit, vermehrte 
Eoooptiousfaiugkoit und eine EmpfilngUchkeit fftr das Gebotono 
voidangt, die eine gosteigerte Thatigkeit der Sinno und des ' 
Geistes erfordert, eine Arbeit, ohne welche der Genuss eines 
Kimstwerkes niolit denkbar ist. Enter dem ermattonden Ein- 
flusse der Hitze, der durch die Verbrenmmgsprodukle des Gas- 
liohtes verunreinigten Luft ersolUaffen KOrpor und Geist um so 

Elektriselio Boloiiclitnng von Tlioatoi'ii. 

mohr, jo lunger dor Aufenthnlt in dor Hitze und dor vordor- 
bonon Luft dauort, jo mohr die Vorderbniss und die Stoigoning 
dor Temperatur zunelimen. 

Die bedeutende Steigerung dor Temperatur und die Zu- 
nahmo dor Luftvordorbniss in inensoheuerfallton gaserlenolite- 
ton geschlosaonen Eanmon, zumal in Tlieateni, ist von Prof. 
M. von Pettenkofer zahlenmUssig naohgewiesen;*) sie macbt 
sich jodooh nnoh ohiio thermoinetriseho Boobaolituiig doutlioh in 
dor Abspnunungbomorkbar, die dem Znsolmuer den Genuss vor- 
kilmmert, da or dicsolbe tlberwindeii muss, um empfanglioli — 
goiuissmiiig zu bloibou und niolit zii ormildon. Dio Hin.fn..„ 
dor Effeete gegen d^s Ende eines Thoaterstflokes, die Ai° 
weiidung sconischer Eoizniittel in den lotzton Aktoii, welche 
der Neuzoit, den frttlicrcn Epochen gcgoiidbor, zum Vorwurfe 
gemacht werden, haben iiicl.t zum geriiigen Thoil ihren Gniiid 
darin, dass cs gilt, cm durch hobo Tomporatur orsolilailtes mid 
ermfldotos Publiknm durch krilftigoro Mittel anziiiegeii, als 
gonan genommcn init cdler Kunst voieinbar sind. 

Mit dem Gaslichto sind die Bcdiiigiingon, untor denen die 
dramatischen SihiSpfmigen mir Darstellung gelaiigen, andere, 
als zu den Zeiteii goworden, von denen viel des Eilhmliohen 
boriohtet wird. Ob zu ibrein Vortheile, wolleii wir bier nicht 
ontschoiden, .sondoni iiberla.ssen den KuiishlsH.etiknrn die oin- 
gehondo ITntorsuchmig diesor Erago. 

Dem Publiknm gogoiiiibor stoht dor darstolloiido Kilnstler, 
dor mit dem Aufgoboto physischer und geistiger Kraft die 
AVoiko derDichtor und Komponisten zu verkOrpern sucht. Auoh 
auf ihn wirfct die Steigerung der Temperatur, und zwar um so 
eindrmglicher, als der Schauspiolor odor Silnger, direkt von den 

Pai2. Edison Gesollsol.nft I. „D„s 

Ed son-Glalilicht mid sonio Bo.lciitnng fllv Hygioao und Kottungswoson. 

Wilrmostmlilen iler Gnslnmpon getioffoii wiril, welclie zu nllen 
Soiton, hintor don Konliason, oboii liintor don Soffitten nnd zn 
soinon Pllsson on dor Eninpo ougobraolit sind. In dor von 
dieson Lnmpen nnaufliiirlioli non oraongten Hitze ist dor 
Ktlnstlor gozwungon zu spiolon, zti sproclion, die Kinft anszii- 
gobon, welobo die Rolle orfordort. Wer da woisx, welcho 
pb3'sisoho Kraft dio Darstelluiig oiner grosseii Eollo orfordort, 
kann orinosseii, was es lieisst, diesolbe in oiner Toinpomtur zn 
Endo zu ftlbren, wolobe don Sildlilndor ziir Siesta zwingon 

Dazu koinint, dass dio don Uaslainjioii dor Eam])o entstrO- 
mondeu warmen Vorbronuuiigsgase von dem Darstcller einge- 
atbmet worden, dass dio trookone orwilrmte Lnft das Sprecbeu 
nnd Singon ersohwort, da sie ausdOrrond auf dio Scliloiiuhante 
des Mmides uud dor Koldo oinwirkt. Es ist dalior niclit zn 
verwundern, wonn doin in Solnveiss gobadeton Ktlnstlor bis- 
weilen dio Krilfte orlalimon, das Organ iiiclit in erwniischter 
Etlllo aiispriclit and dor Darsteller in oiner schwierigen, an 
nnd fill- sicli sclioii grossii Aiistroiigung erlorderadon Eolle zum 
Scbluss dorsolbeii, wio dor landlilnfige Ausdnick lautot, ..niobt 
auf gloioher Holio bicibt". 

Man ziolio dio Uiiistiliido in Bolraclit, woloiio dem Kiinstler 
die A.isilbung soiiior ivimst orsoliworen, nnd man wird be- 
groillioh Jimlon, <lass es eiii kaum zn orfilllondos Vorlangen ist, 
dom Darstollor zuzumutlien, in oiner Teinporatnr kori>erlicli nnd 
geistig nielitzn onnallen. dio.dnrelnveg boborist, als diejomge, 
welobo sclion don rubig dasitzoudon Zusobauer in seiner Em- 
pfilngliobkeit booinlrilobtigt nnd in das GofObl dos Unbehagens, 
dor Misssliininnng und zulolzt in kiirporliebo nnd goistige Er- 
sbldaffung nnd Ermattung voi-sotzt. 

Durcb gooiguoto Voiitilatiousvorriobtinigou bat man, wle 
bereits orwtthnt wurde, dio Uble Einwirkung dor Gasbelencbtung 

Eloktriscbe Boleuohtung von Thontorn. 

in eiiiigen Tbeatorn unsohttdlioli zu maoben gosuobt .und auob 
befriedigende Eesultate orlialten, donen jedooli bodoutondo An- 
lago- imd Betriobskoston gegenflber gostollt worden mtlssen, 
die oiner allgemeinon Verbreitung dor mittolst Masobinen be- 
werhstelligten Vontilation, wolobo naoh dor bisborigon Er- 
falimng die oinzige zwookerftlUondo ist, bindernd ontgegen- 

Wird auch dor Zusohanorraiun diuroh Vontilationsapparato 
von dor beissen, mit Verbrennungsprodukton verunreinigten 
Lnft befroit, so bleibt doob dio von den Eampeu-Elammen auf- 
steigonde orwttrmto Lnft, welobo niobt nnr dom Sobauspieler 
belastigend entgegonstriimt, sondom auob in akustisobor Bo- 
ziehung Naohtheile mit siob bringt. 

Naob den Untorsuobungon von W. AV. Jaquos*) bUdot 
eiiie aufstoigende, orwilrmte LuftstrOmung oino Wand, wolobe 
den Soball zum Tbeil duroblilsst, zum Tboil abor reilektirt, 
so dass dor diurcbgohondo Soball um so viol von soinor Inteii- 
sitat einbiisst, als von dor Luftwand zurtlokgeworfon wird. 
Es golang Jaques sogar in soinom Vorlosungssaale, durcb 
mobrore Scliicbten aufwIlrtsstrOmonder orwilrmter Luft, so viele 
„Luflwitndo“ liorzustollen, dass dio Eofloxion dorsolbon im 
Staude war, don Ton dor mensobliobon Stimme bis fast zur Un- 
liGrbarkoit abzudampfon. Bei solbst langsamom Sproobon ward 
die Stimmo niobt nur sobwttobor, sondom auob vorworrou uud 
undontUcb, als wonn jede Silbo mobroro Male in kurzor Auf- 
einanderfolgo wiederholt wtlrdo, Eino FlOte batto diesolbe 
Wirkung, wio dio mensobliobo Stimmo, wttbrend eino Violins 
goringore und oino Trommel gar koine Wirkung zeigte. Am 
dentliobsten traten die Erscbeiiiungon dor Tonabnabmo und 
der TJndentlicbkeit bei dor mensobliobon Stimme und don- 

») Fhilosopliical Magazino. Sor. D. Vol. VII. pag. 111. 

10 Doutsoho Ed ison Gos olUolml't. 

jenigen musikaliBohen Instrumenten zu Tage, wolohe verholtnias- 
mllssig geringe ObertOue besitzen. 

Je mebr solcber LuftstrOmiugen vorliaudon imd je milch- 
tiger dieselben sind, iim so grosser wird die Undeutliohkeit 
sowohl des geaproobenen 'Wortes, als die einer gesnngenon 
Note. Der ursprtlngliobe Soballstrald, der auf den orsten Liilb- 
strom trifft, wird tbeils reilektirt, tbeils durcbgelassen. Der 
durobgelassene Scballstralil wird wiedenun von dem nilohston 
Luflstrom getbeilt und so fort, bis alle LuftstrOmnngon pnssirt 
sind. Da jedooh dor roflektirto Sohall ancb wiodor bei seinem 
Bflokwogo oino Luftwand tiifil, die ibn tbeilt nnd reilektirt, 
so entsteben viele sekundtoo ‘Wellen, die das Obr sobliesslicb 
treffen und die Deutliobkeit des iwsprilnglioben Tones vei> 
dooken. LuftstrOmungon von weebselnder Dicbte veranlassen 
somit zuerst eine Abnabmo der Tonstarke und dann erne 
Dndeutliohkeit oder Verworrenheit desselben. 

Hierans erfoigt War, dass man, um eine gute imgebinderte 
Nortpflanzung des Soballes zu ermOgliehen, die XiuftstrOmnngen 
beseitigeu muss. 

Dass die ZorstOrung derartiger LuftstrOmimgen nun in 
Wirkliobkeit die Aimstilc oiues Eaumes ausserordentlich be- 
gUnstigt, bat J a q u e s durob seine Beobaobtimgen in der 
Musikballe zu Baltimore bestatigt gefundon. 

Die Ventilation jener Lokalitat wird in der Weiso nus- 
gefflhrt, dass die frisobe, im Winter binter der Bilbne er- 
warmte Luft, horizontal ttber die Blibne sti-eioht, aber die 
Eampe und das Orobester gebt, imd dann diagonal in mUssiger 
Bewegung naob dem Dacbe ziebt, so dass die Bddung Weinerer 
aufsteigender LuflstrOmungen gebindert ist. 

Die Akustik dieses Eaumes wird als ausgezeiolmet ge- 
rObmt; es ist den Sangem ungemein loioht auf der Btllme zu 

Eloktrisclie Belouchtmig von Theatom._|1 

singen und zn spreohen und selbst geringe Gerausobe, wie 
z. B. tiefes Atlunon und leises Flastem auf der BUbne, worden 
im ganzen Soale gobOrt. 

Diese vorlrefBiobe Akustik rttbrt aber nur von der Bo- 
sobaifenlieit der Luft imd niobt otwa von der Anordnung imd 
dem Material der Wando oder andoren Ursaoben ber. Um dies 
zu bewoisen, wurden wabrend einer Yorstellung Porsonen an 
vemoluedenen Platzen des Ziisobaiiorrauraes obne weitere In¬ 
formation aiifgestellt, welobo nur genau zu notiron batten, wenn 
sie deutlioh und wenn sie sobleolit bOrten. 

In verscbiedenen Intervallen wurde dann wabrend des- 
Abends die Ventilation imterbrooben, so dass die beissen Luft- 
strOme von dor Eampe, dem Orobester und andoren LiobtqueUon 
ungebindert anfsteigen konnten. Past ausnabmslos lautete das 
Zeugniss der HOrer, dass zu Zeiten der Ton versobwommen 
und undentlich gewesen sei imd man bemerken konnte, dass 
das Publikum im ganzen Hause sicli anstrengte, um zu bOren. 
Dio naob der Ubr gomaobton Aufzeiolmungen ergaben, dass 
diese Zeiten genau mit don Unterbreobungen dor Ventilation 
zusammenfielen. Es ist femer eine in der Tboaterpraxis be- 
konnte Erscbeinung, doss ein Sanger oder ein Sobauspielor 
auf dor Probe, vor loerem Hause mit seinem Organ viel maob- 
tiger wirkte, als am Abend wabrend der Vorstellung bei be- 
setztem Hause. Man pilegt diesen Untersobied den sobaUab- 
sorbirendon HleidungsstUoken des Publikums zuzusobreiben, 
die keineswegs obne Einflnss auf die Akustik sind, aber da auf 
den Proben die Eampenbelouobtuug fortfUUt — bei den Sohau- 
spiel- und Hlavierproben auob noeli die Orcbesterbeleuobtung, — 
so darf man, gestlltzt auf die Experimente des W. W. Jaques, die 
Einbusse, welohe das Organ an Kraft, an Maobtigkoit und Qlanz 
am Abend im Vergleiob zur Probe orleidet, grOsstentbeils auf 

Sontsoho Edison Gosollschnft. 

Elektriselie Belenehtnng von Tlieatern. 

Eeolmung cler hoisson LuftstrOmo stollon, wolclie von der 
Bampenbolenolitiuig uiul don Lampon dos Orolioaters nufsteigen. 

Dio liier knrz orOrtorten Naolitlioilo dor Gasbolonclitnng: 
dio Doborliitiiung dos Ziisolmuorrnumos nnd dor Bflime, wolclio 
dns Pnblikiun in Diibolingon voraofczt und den Darstollor zn 
orsoliOpfendon Anstrongiuigen zwingfc, dor gommdboitssohildi- 
gondo ormtldonde Einflnss dor Vorbronnnngsgnso, dio Sehwiorig- 
koit, dio erbOhto Tomporatur duroli Vontilation zu mfissigon, dio 
Notliwondigkeit, dio Thoator in der milden Jnbroszoit zn 
soldiosson, dio hoissonLnftstrOmuugon, wolelio donTon solnrUoboii 
und Sohuid damn sind, doss in den orston Pnrqiietreibon moi¬ 
stens am wonigston gut gobOrt wird, sio nllo drilngen im Inter- 
ossB dos Publikums, dor Darstellor, ja dor Kimsfc selbst, auf 
oine Eeform dor Thoatorbolouobtung. 

Diu-cb dio gonialo Eriiudnngvon Thomas Alva Edison, 
durcli dns elektrischoGrlttbliobt, ist dioso Eoform zu vorwirklicbon. 

Boi oiner stiindliobon Lioliterzougnng von 100 Eorzon 
ontwiokolt oin Louobtgas-Argandbronnor dStiO Wilnnooinboiton, 
oin Louclitgas-Zwoiloolibronnor 12160 AVitrmeoinboiton, das olok- 
trisoho GliUiliobtdagogonnur290-636 Warmooinlioiton*) Dioso 
Zablon bedflrfen woitor koines Commontnres! 

Das oloktrisolio GKlblicbt, naoh dom System Edison, ent- 
wiokolt boi gloiolior Liohtstarke vorbaltnissmilssig geringo 
Wttrmomengen und ist froi vonjegliobonVorbrennnugsprodnkton, 
ebenso wio os dor Luil keinon SauorstolF outzioht. Durob dioso 
seino niobt boob genug anzusoblagonden Eigonsobaften ist os 
froi von don Naohtlioilon der Qasboleuolitung und bat niobt 
die Uobolstilnde im Gofolge, von denon im Vorangohonden 
gosproobon -wurdo. 

EaiamGh§!i!l°f'*’‘^T‘“-'‘“"^ dor Doutenhon Edison Gosollsolma I. ..Dos 
msoa Glaliholit und soino Bodoutung fllrHygioiio mid Kottungsivoson." 

Das Gltibliobt sobmiilert niobt den Genuss dos Theater- 
besuobers, da os den Aufenibalt in den elektrisob beleuobteten 
Ellumen zn einem angenebmen maoht. Es erleiohtert dem 
Darsteller dio Ausffllirung seiner Aufgabe. Die Sobauspieler 
derjenigen Theater, welobe bis jetzt das Gltibliobt eingofilbrt 
babeu, sind gUlcklicii dartlber, von der Zugbitzo der Eampen- 
belencbtimg erlOst zu sein. 

Das Qlfllilioht giobt den Tbeatem die Annolimliohkeiten 
wieder, welche das Gaslioht ihnen genommen lint. 

Das eloktriscbe Gltibliobt erhobt die festliobe Stimmung 
durcli seiuon reiueii, soimigen Glauz, den es nusstrnblt, obne 
die Lnft zu erbitzen und zu verderben. 

Es erleucbtet die Btlbno mit ivobltbuendor KInrbeit, deren 
Dekorationeu es niclit wio dns Gaslioht durob Eussnbsatz ver- 
dirbt. Es ist dem Auge wegen seiner Eulie angenebmer, als 
dns znckende, ilnckerude Gaslioht, und mncbt desbalb nervOse 
Persouen niobt uocb nei-vOser, wie jenes. Es tlberhitzt die 
Ellume niobt und sebreekt dns Publiknm beim Eintritt der 
milden Jnbreszeit niobt vom Tlienterbesuobe ab, wie das Gas- 
licbt. Das Pnblikum, welches einmal die 'Wobltbat der Be- 
lencbtnng von Tbeatem mittelst Gltllilioht empfunden bat, 
wird dieselbe niobt mebr entbebren wollen; diejenigeu Theater, 
Eonzertsille nnd geselligeu Znsammenktlnften dieuenden Eta- 
blissements, welche das Gltllilioht einffllirten, baben ibrer Kon- 
kurrenz einen gewnltigen Vorspmng abgewonnen, indem sie 
die Bedtlrinisse der Zeit erknnnten. 

Die von Tag zu Tag znnebmende Verbreitung des elek- 
triscben Gltlbliohts wird zur Polge baben, dnss das Publikum 
sich mit den Annehmliobkeiten und Vortbeilen desselben mebr 
und mebr vertraut macbt. Es kann daber niobt ausbleiben, 

14 Doutaoho Edison Gosollsclinit,_ 

dass das Publikiim das Verlangen stollt, an dem Fortsohritt zn 
partioipiron, don das QKllilioht auf dom Qebioto dos Bolenoli- 
tnngswosens roprUsontirt. 

Man -wird naoli niobt gar langor Zeit dio Frago aufworfoa, 
wie es mOglich war, in niolit olektrisob beleucbtcten Tlieatoni 
ausznlialton urn an don KiinsMoistnngon nngotrttbton Qennss 
zn bnden? Es wird sioli iioransstollon, dass dnrch dio Belencli- 
tnng dor Theater mit oloktrisoliom GUlhliclit Alle gowinnon: 
das Pnblikum, die Ktinstler, dio Direktionon mid — dio Kunst, 
welobo oil! ompfiliigliohoies Pablikmn imd sclinilbiisf'reiidigore 
Darstellor findot. — 

Die iiraktischon nnd toolmisoliou Erfaliningon, welclie bis 
jetzt bei don GKlliliobtanlagou vorsohiedoner Tlieator gomacht 
worden sind, wordon nils anf'don folgoiidoii Soitoii beschilftigen; 
Hio geben doin bnolimaiiii iiiolit nnr, sondeni ancli jcdem sicli 
Interoaaironden AnsknniV. liber die riistallirnng des Glalilichtes 
in Tlieateni. 

Eloktrisclio Belouelitnng v on Tlientom. _ 16 

Die elektrische Beleuchtung des Stadttheaters 
in Briinn.*) 

BrOun ist mit soinon ilOOOO Einwohnem iind seineu zabl- 
reiclion Tueh- nnd Ledorfabrikon eiiio dor bodentendsten Fabrik- 
stadto OestoiToiclis; wir dtlrfen nns dalior niolit ivnudem, in 
oinor so roichen Stadt oin Theater von soldier GrOsse nnd 
SchOiiheit zn hndon, dass os einer Hanptstadt wflrdig wttre. 
Das Theater ist von alien vior Seiton frei nnd steht inmitten 
schOnor Parkanlageii, welohe auf dem Teirain dor im Jahro 
18G0 niedorgelogton Postiingsworko aiigelogt sind; os ist an 
dio Stello eines im Jahre 1871 ornohtotoii Interimstheatera 
getreten imd nacli den Plilnen dor Wiener Arohitekten Fellner 
nnd Helmer nnsgofillirt wordon. (Tafel Fig. 1.) Dor Ban 
llisst schon im Aeiissei-en das Theater in seinen Hanptranmlioh- 
keiten, der Vorhallo mit Treppenhans, dom Ziisolianerraiiin end 
dem flberhOhton Bilhnenranmo, erkennon. 

Dor Znsehanorranm besteht ana dem Parquet, droi Ettngen 
imd dem Amphitheater, ist dnrohweg fttr Sitzpltttze oingeriohtet 
nnd kann 1200 Porsonen fassen. Ursprilnglioh war derselbe 
fflr 1600 Personen boreohnet; infolge des Brandos des Wiener 
Ring-Theaters sind jedoeh dio Gilnge bedeutend verbreitert 
nnd duller die Sitzpltttze verringert worden. Aus demaelben 
Gmnde warden auoh an Stella von zwei Seitentreppen des 
ersten Entwurfes deren vior angebracht. Der gnnze Zusohauer- 
raum ist in iiellen FarbentOnen gehalten nnd roioh mit Ver- 

*) Aiiszag ans dom im Milrzhoft 1888 dor Zditsclirift dos Voroins dout- 
sclior Ingonionro onUmltonon Artikol; „Dio oloktriaolio Boloiiolitung dos 
Sovoy-Thoators ill Loudon mid des Stndttlioators in BrUiiii." 

1(5 Doutsoho Edison Geaellaelialt. 

goldung versehen; die innere Aussolimaokung der Logon, femer 
die Draperien some die gosammten Sitzpltttze sind im krllfitigeu 
Dmikelroth gelioUeii. 

Dns Bulmenimus iat von dom ttbrigcn Gobilndo dnrclt 
1 bis 1,5 in dioke 'Wilnde mul von dem Znsolinuorronm dnroli 
einen eisenien Vorliang gotvonnt. Dasaolbo bestelit nns der 
Hanptbtlbne, dem Sobndrboden, der ITnterbfllme, der dnrcli 
einen eisenien Vorbnng von dor Hnnptbillino gotronuten Hinter- 
billine nnd don zu beiden Seiton der letzteren gelegenen 
Decorntionsmagnzinen. Der Solmiirboden niid die Unterbnlme 
hnbeu nngelillir die HObe der Ilanptbilliiie. 

Eine Einriolitnng f'ilr Gasbolenclitnug ist in dem 
ganzen Hanse niolit vorhanden. Glilcklicbonvcise eiit- 
sobloss aicli der Brdnner Qemeinderatli mil’ Betreibeu dee 
Bftrgermeistera AVintorliollor noeli reclitzeitig, iiiclit Gas-, 
sondem die elektrisobo Belenclitung einzni'flbreu. Man muss 
diesen killmen Entseblnss nm so melir bewnndeni, ids damals 
diO lit-niiltabT Jl -1 jVtiincbeiier \ ersucbe der Tiieaterbeloncbfcnng 
iiocb uiclit vorlagen. Nnu, meine Horren, iver die Aniage ge- 
seben nnd siob von ibror Vortreffliebkeit ilberaeiigt bat, wird 
erkaiint baben, dass der Brilnner Gemeiuderatb seinen Ent- 
sobhiss niolit zn bereiien bat, vielmelir seinem tbatkrilftigen 
Bttrgerraoister daiiken muss, desseu rastlosem Bemtilieu das 
Gelingen der ganzen Sadie zu verdauken ist. 

Die elektrisobo Beleuolitmigsaulage des Theaters wnrde 
gemeinsobaftliob ansgefilbrt von der Commandit - Gesellsoliaft 
fill- augewandte Elektrioitilt Brflokuor, Boss & Consorten 
ill Wien mid der Sooidte ileotriqne Edison in Paris, aiif Grand 
eiues Vertrages, desseu weseiitliebste Pimkte spttter mitgetheilt 
iverden sollen. 

Die Besobreibung der ganzen Aniage ivill icb in vier Ab- 
aobnitte tbeilen. 

Elektriaoho Bolonobtnng von Thontom. 17 

1. Masohinen-Anlage. 

Das Maseliinonbaiis ist ungefllbr 1100 m von dem Theater 
entfenit. Ueber die Masobinen-Aniage (Tafel Pig. Si und H) 
eutuelnne iob einem Vortrago des Hni. Burgbardt, Baiiratb 
der Stadt Brduu, die folgendeii Angaben: 

Der baiiliobe Tboil dor Aniage zerfUUt in das Kesselbaus 
mit 129 qm bonntzbarer Grandiibobo und' das Masobineubaus 
mit 120 qm Graudflilobe. Im Kesselbaus bofinden siob drei 
nebeii einander eiugemaiierte EOhrendampfkessel, System Dn- 
liuis. Jeder dieser Kessel bestelit im wesentlioben nils einem 
liorizoutaleu Vorderkessel (4 m Liluge, 1,1 m Dnrobmesser) nnd 
einem augescblosseiieu stebendeii Eiibreukessel (2,0G m HObe, 
1,03 m Diircbmesser), in wolobem letzteren siob vier Gnippeu 
EObreu, zusammeu 08 EObreu von je 70 mm iliisserem Durob- 
messer beOuden. Die gesaminte HeizflUebo jedes dieser Kessel 
bereclmet siob auf 05 qm, mid da f(lr den regelreobteu Betrieb 
der Dampfmascbine zwei Kessel genilgen, so verbleibt iramer 
ein Kessel ftlr die Ausbillfe. Der miter dein Vorderkessel 
liegende Planrost bat eine Lilnge voii 1,205 in bei 1 in Breite; 
das Verbaltuis der Eostflilobe zur Heizfiilobe ist daber 1 :44. 

Die mit alien erforderlioben Heiz- nnd Sioberbeits-Arma- 
tureu aiisgestatteteii Kessel werden durob eine "VVanddampf- 
pumpe mit Wasser der stadtisoben 'Wasserleitung gespeist, 
welches dieselbe alls einem kleiuen draokfreien BebUlter an- 
saugt uud dnrcli einen Draokriiliren-Vorwilrmer in die Kessel 
befilrdert. Letztarer wird von dem Abdampf der Dampf- 
maschine diirobstrumt uud bietet demselbeu eine HeizOlicbe 
von 1.5,0 qm, welobe gentlgt, um das Speisewasser bis 90” C. 
vorznwlirmeu. Zur griisseren Sioberstellung der Kesselspeisung 
ist am gennnnten "Wasserbeblllter eine Sobttffar- und Buden- 
berg’sobe Strablpiunpe angescblossen, deren Druckleitung mit 

Dontaoho Edison Goaollaohnft. 

Eioktrisoho Belenchtnng von Tliostern. 

cler Speiseleitimg in Vorbindung atebt. Die Dampfkessel sind 
nnf sieben Atmospbttron Betriebsspnnnung ooncessionirt, weloho 
Spnnnung nndh ala znlllaaiger Dniolt fUr die Dampfmaaobine 
in Anssioht genommon iat. 

Belmfs Enuohvoi'zolming sind tlbor don Eoaton dor’Kossel 
eigon constmirto Dnmpfgoblilao nngobracht, welclie ziir Zeit 
dor frisoben Besobickung dor Boato in Tlilltigkoit gesotzt 
wordon. Dio den Kesaoln gomeinsnmo Esse liafc 30 m Holio. 

Dio Dampfmasoliine, eiiio 110 pfordigo Hoclidmckdampi- 
maschine (System Collmann), Zwilling mit Knrboln iintor 90°, 
von 360 mm Dnrolimessor, 800 mm Hub dor Kolbon nnd 105 
TJmdi'olmngen in dor Minute, zeiobnot sich durcli rnliigen 
Gang ana; die Stononmg wirkt, solbst bei 105 Umdrolmngen 
in dor Mmnto, ilussorlioli biabor tadollos. 

Anf dor gemoinsamon 'Wolle ist das Seilschwnngrad von 
4 m Dnrolimesaor angeordnot, welolies dio Vorlogewello mit 
sieben Hanfsoilon von jo 40 mm Dnrolimessor troibt. 

Bei oilier mittloron Spaiiniing von 1,8 kg pro qcm, welclie 
oinor G- bis Tfnohoii Expansion ontapriclit, orgiebt sicb eine 
indioirte Loistung von 66 Pferdoki-afton fUr jeden Cylinder; 
im Ealle oinor Eeparatnr dor oinen Maaobinonlittlfto kann die 
aiidero dnroli atitrkero Eilllnng nnf otwa '/i bis zn 7a der go- 
sammten Leiatnng lierangezogon wordon. 

Vermittelst der siobon Eanfseile wird dio gesammte Erafit 
dor Dnmpfmasoliino nnf oine Seilsolieibo von 1,1 m Dnrolimessor 
nnd dio parallel oinor Wand dea Mnsobinonbansos lanfende 
Trnnsmiasionawello tlbortragon, welclie demnaob 300 Dm- 
droliungen in der Minute macbt. Von der Trnnsmissionawolle 
ans wird die Bowegung mittelat bnumwolloner durcbstepptor 
Biemen, welobe in Gnbeln laufen, anf die im Masobinenranme 
beflndliolion viei Edison’solien nnd zwoi Grammo’scbeu 

Dynamomasobinen tlbortragon. Von letzteren dient die grOssere 
(ftlnfpfordige) zum Betriobe von fttnf vor dem Theater anfge- 
stellten Bogenliolitom, die kleinero (zweipferdige) zur Erzon- 
gnng von Efifektbolonolitnngon (z. B. zur Nnoliahmung von 
Mondscbein durch olektrisobes Bogenlicht) anf der Buline. Es 
soil nocli oino dritte Grammo’sobe Mnsoliino nufgestollt warden, 
welobe don Strom filr oino boroits anf dom Boden des Zn- 
scbauerranms anfgestollte, ziim Betriobe oinos Exbnnatora 
dienendo, seoundttre Dynamomnsobine liefem soil. 

Dio vior Edison’solion Dyiiainomnsobinen (Modoll A), 
welobe im Stniule sind, jo 260 A-Lampen von jo IG Normnl- 
korzen Licbtstiirko zn spoison, babon dio folgonden Dimen- 
sionon: dor Widoratniid des Ankers betrilgt 0,0325 Olim, der dor 
Magneto 12,I8 Obm, dio Stromstilrke 183 Amp5ro, die Klemmon- 
spannnng 110 Volt. Es sind G4 Commntatornbtlioilungon voi- 
lianden. Jedo Maacliino wiogt 4000 kg nnd bodarf zn ilirem 
Betriobe 30 PferdekrUfto. 

Die vior Masobinen, welobe 900 TJmdrolmngeii in der 
Minnte mncben, werden, da sio bOolistens gleiclizoitig 900 Gltlli- 
licbtlnmpen spoison, niebt anf das bOobsto Mass ibrar Leistnng 
in Anspmcb genommon. Eino Ausbillferaasobino ist niebt vor- 
banden; sollto eine dor Masobinen vorsagen, so werden die 
Itbrigen in ontsprechend bOlierem Masse beanspmeht. 

Die olektrisebo Anordnnng der Masobinen ist ans der 
sebematisoben Sldzze (Tafel Eig. 4) zn erseben. Die voll- 
ansgezogenen Linien bedenten den Hanptstromkreis, die pnnk- 
tirten don Erregnngsstromkrois. Die vier Masobinen sind 
parallel gosoholtet; ibre Elektromagnete werden dnroli vier 
ebenfalls parallel gesobaltete ZweigstrOme erregt. Der in jeder 
Masobine erzeugte Strom duroblituft eine an der "Wand des 
Masobinenbansoa angebraebto Sobaltvorriobtung, nnterbalb 
welober sicb die Drllbte zn einem gemoinsamen Strange ver- 

Deutaolie Edison Gcsellscliaft. 

einigeu. Eine gleiolie Sohaltvorriobtung ist ftlr den Erregungs- 
stromkreis vorkanden. Zur Eegnlinmg der elektromotorisolieu 
Kraft der Masoliine werden 'Wideratttnde aus Nensilberdrabt 
inittelst eines Kurbeleinsobalters in den Erregnngsatromkreis 

Der in den vier Masobinen erzengte Strom wird in einem 
Stromkreise zn dem Tlieater geleitet. Es dieuen liierzn die 
Fig. 1 bekauuteii Edi.aon-Kabel (Textfigiir 1), in wel- 
oben Hin- nnd Hilokleitiiug geineinsam in einem 
Eisenrolir, welolies im vorliegenden Ealle eiuen 
u 14 I.U.U..W.J I Diircbmesser von 70 inm lint, eingescblossen sind. 

Die Leitnngen beatebeu mis linlbmondibrmigen 
KupferbaiTeu, welobe vou eiuandei- nnd von der 
EisenrObre ilnreb eine laolirmnsse von eigenartiger Zusnmmen- 
setznng getrennt sind. Knbel kOnnen wie Gasleitungs- 

rOliren in die Erde veraenkt werden nnd liegen in BrOnn 1 m 
tief. Die einzeluen zur Venvendnng kommenden Robreu liaben 
eine Lituge von Om; die migefabrricm an jedem Ende bei-- 
vorragendeu Kuiiferbarreu werden init deueii des n&cbsten 
Robres durob U-fi)rinige Bilgel verbiinden, lira eine Ausdehuung 
nnd Zusamraenziebiiiig der gniizen Leitung zn geatatten. Siebe 

Eloktrischo Beleuehtung von Thentern. _^ 

Beim Legen der Kabel wird folgendermasson verfabren. 
Die bervorragenden Kupferenden werden sorgfUltig gereinigt 
imd sodanii zwei Robrsttloke so anoinandor gelegt, dasa zwisoben 
den Kupferenden iingofUbr ein Zwisobenraiim von 5 om bleibt. 
Die kupfemon U - fiirmigen Btlgel werden daranf mittelat 
Schrauben an den Kupferenden befestigt. Dm aber einen auf 
alle Fallo siolioron Contact zn erzielen, werden die Kupfer- 
sttlcko im Wasserstoifstrom ziisammengolUtliet. Alsdann wird 
die Verbihdiingsstolle mit einem giissoisornen Kasten iimgeben, 
dessen Linores, naobdem man zwisoben die beiden Pole ein 
mit Faraffin getranktos Kartenblatt gelegt hat, mit Isolirmasse 

3. Einrichtung im Theater. 

Im Theaterbefinden sioh nmd 1400 Edison’sohe A-Lampen 
von 16 Normalkerzen Lichtstitrko, welobe sammtlich parallel 
geschaltet sind (s. Textfigur 3). Das den Strom ztifflhrende 
Kabel milndet im Keller nnd wird bier gloiob in zwei Strom¬ 
kreise getboUt. In den einen derselbon, die sogenannto Haiis- 
leitnng, sind alle diejenigen Dampen eingesobaltet, welobe 
wabrond ibrer ganzon Bronndauer einer Aondening der Liolit- 
starke niolit bodflrfon, also die Dampen zur Erleiiobtung der 
Vorhalle, der Treppenraume, Elureu. s.w.; ibre Zahl betragt369. 

Fig. 8. 

■!< 'll ^ ■ 

In den zweiten von der Hanptkabelleitung abgezweigten 
• Stromkreis sind die sammtlicben Dampen eingesobaltet, welobe 

Doutsolio Ediaoii Guaellsohnft. 

im Laufe das Abends einer Eegnlirung bedtlrfen, also die im 
Btlhnen- und Zusohauerraiun angebraohten Lampen. 

Zm- Beleuolitimg der Bflhne bei den im Laufe dos Tagos 
abzubaltenden Proben dienen 40 Edison’sohe B-Lampon von 
jo 8 Normalkorzen Liohtstarko, welolio durob oine im Keller 
aufgestellto, Ideine Gramme'sobe Masoliine gespoist werden, 
zu deren Betrieb ein auoli zur Bowegung oines Ventilatora be- 
stimmter seohspferdiger Otto’solior Gasmotor dient.' Als be- 
sonders bemerkensworth sei bier erwttbnt, dass die den Eaum 
dieses Gasmotors erleuohtende Plamme die einzige im 
Theater vorbandene Gasflamme ist. 

Dio Vertboilimg sttmmtUobor Dampen ist etwa folgende: 

Masobinenbaus. g 


Erdgosoboss. g 

Parterre, vordero Loitung einsobl. der Vorballo 118 

„ bintero Loitung.10 

Mezzauin, vom ..jg 

„ binten.. 

I. Eang, vom einsobl. Poyerbolouobtimg . . 79 

„ binten.. 

II. Eang . ... 

m. Eang, vom einsolil. der Krenleuobter im 


„ binten.34 

Ampbitbeater. 5 



Bftbnen- und Zusohauerraum: 

6 Sofdtten zn je 101. 

Eampe rechts. 

„ links. 

Portalcoulisso links. 

n reohts. 

4 Yersetzstttoke zu je 8. 


Zuscbauerraum I. Eang. 

n. Eang . 

in. Eang. 

Ampbitbeater.. . 


ITnterbabne 1 1 

Souffleur / regulirbar.| 

Prob onb elouobtung: 

1 Soffitte. 

Sonffleur . 


Im ganzen . •. . . 

Die Tbeilung des durob das Kabel zugefttbrten S 
gesobiebt mittelst einer SobaJtvorriobtung (s. Tafol Pij 
in welcber die mit einer Eabne versebenen PfeUe don 
regnlirbaren, in der Zoiobnung als geOffnot dargestollten f 
krois (Hansleitung), und die mit zwei Eahnen versebenen 
don regnlirbaren, als gesoblossen dargestellten Stromkrc 
denten. Die mit Bs bezeiobneten Bleistreifen baben don 5 
im Ealle einos kurzen Soblusses in der Loitung oine Erh 
dorselben zu vermeiden. Entstebt namlieb dmrob irgend 

Dontsoho Edison Goselleohnft. 

Elsktrisoho Beleuohtnng von Theatern. 

/ Zufnll ein kurzor Sohlitss, d. h. oino direoto Vorbindnng der 

Hin- und Bttokleitnng, so muss, da plOtzlioh oin grossor "Wider- 
stnnd luisgesolmltot wird, in don boiden BriUiton oino stnrko 
Erhitzung stattflndonj diosolbo pflanz6 sioli boi dor grosson" 
Wiirmeloitun^filliigkeit des Kupfors sobr aolmoll fort nnd 
scbmilzt den in die Loitung oingosolialteton Bloistroifon durcb, 
wodurcli der Strom untorbroohon wird, bevor oino fouorsgofahr- 
liolie Erliitziing dor Leitungon ointritt. Da nattlrlioh oino 
sololie Bloisioliomng niolit zu woit von oiner gefllhrdoton Stollo 
ontfei-nt sein darf, so ist im Brilnnor TJioator die Anordnnng 
gotroffon, dess boi .lodor Abzwoigiing oinorLoitnng immoreino 
solche Bloisioberung eingesoiialtot, mindestons- abor jo oino 
i Gruppe von U bis 10 Dampen mit oinor soloben vorsohen ist. 

Die Hausleitung steigt senkrooht vom Keller bis znm 
Amphitheater empor. In jodem Eango sind Abzwoignngen 
nngebracht, welohe stets mit einor Bleisiohemng Bs nnd mit 
einem SWpseleinschalter A, wio in Eig. 6 dargestoUt, vorsohen 
Kind. Die Leitung verzweigt sicli also astftrraig dureh das 
ganze Hans. 

Die Leitung for don Billinen- und Zusohanorranm geht 
Iinmittelbar vom Keller ztim Eoguliningsapparat, dem intoi^ 
esKantesten und wichtigston Thoilo der Anlago. Bevor die 
Leitung denselben erreieht, wordon von derselben die 13 Dampen 
fur die UnterhUhne und dio 2 Dampen for den Sonffleur ab- / 

gezweigt, da dieselbon einor Eogulirung niobt bedarfen. 

Zur Besohreibung des Eogulirungsapparates aborgohond 
muss leh nooh hemorkon, dass dio Dampen einor jeden SofBtte,’ 

Bampo und Coulisse in droi Stromkreise eingesohaltet sind, 
und zwar ist jodo zwoito bozw. dritte Lampe mit einer olasti- 
sehon Golatmehallo von rothor bozw. grilner Farbe aborzogen, 
urn dadureh das zu vorsohiodonon Baliuenzwooken orforderliohe 

farbigo Lioht hervorbringen zn kOnnen. Da also von sSmmt- 
liohon Sofldtten-, Bampen- und Coulissenlampen nur der dritte 
Theil zu gleioher Zeit brennt, so sind immer nur 
900 Dampen im Betriebe. Am Boden der Bahne und auf dem 
Sohnarboden sind jo seohs Paar Polklemmen angebraoht, von 
welohen aus der Strom den VersetzstOoken dureh biegsame 
Deitungen zugefohrt wird. 

Dio in don Fig. 7 und 8 sohematisoh dargesteUte Ein- 
riohtung dos Eoguliningsapparates ist eine ziemlioh verwiokelte, 
do boi einem Theater, Welches, wie das BrOnner, alien Kunet- 
gattungen dionen muss, in dem bold eine Posse, bald eine 
TragOdie odor eine grosse Oper gegeben wird, eine mOgliohst 
violsoitigo Eogulirung der oinzolnen Beleuohtungsabtheilungen 
maglioh sein muss. Dio Einriohtung besteht im wesentliohen 
darin, dass der Hauptstrom in so viel Stromkreise getheilt 
wird, als aus bahnentoohnisohen Baoksiohten erforderlioh sind, 
nur dass in dieselben mittelst eines Kurheleinschalters je nach 
dor gowanschten Liohtstitrke der Dampen Widerstttnde einge- 
schaltet werdon. Der Begulirungsapparat ist reohts auf der 
Baline an der Wand, welohe dioselbe von dem Zusohauer- 
raumo trannt, ungefohr 2 m aber dem Fussboden angebraoht. 
Wio man aus der Fig. 10 leicht ersieht, ist im vorliegenden 
Falls for die Dampen jeder einzelnen Soffitte, der sttmmtliohen 
Soffitton auf oinmal, jeder Eampenhalfte, jeder CouUsse, der 
ganzon Bahne auf einmol, der Versetzsttthder auf der Bahne, 
der Versetzstander auf dem Sohnarboden, ondlioh for die 
Dampen des Orohesters und die des Zusohouerroumes eine be- 
sondere Eogulirungsvorriohtnng vorhanden. 

Um oin Bild von dor Einriohtung des Eegulirungsapparates 
im einzelnen zu bekommen, ist dor Stromlauf for dio erste 
Soffitte ausfohrUoh dargesteUt. 

26_ Dautsohe Edison GeBeUsohaft. 

Die Kurbeleinsohalter a und /> (vergl. Tafel Figur 7 u. 8) 
sind ouf einem Tische derart angebraoit, dass sio leiobt ge- 
bimdbabt warden kOnnen; an derEtlokwand sind die einfaohen 
Einsohalter o und d und tlber denselben die Drahtwiderstande 
a und f befestigt. Der vom Hauptstrom abgezwoigte Strom 
dient entweder, wenn der Stromkrois duroh den Einsohalter c 
gesoblossen, dagegen der Stromkreis der rothon oder der gi-flnen 
Dampen geBfinot ist, zur Speisung der weissen, im ontgogen- 
gesetzten Ealle zur Speisung der farbigen Dampen. 

Eehmen wir nun, wio es in der Eig. 7 dargesteUt ist, on, 
der Stromkreis zu den weissen Dampen sei ge-soMossen und 
bebufs Dilmpfung der Dampen mittelst des Kurbeloinschalters 
der balbe Drahtwiderstand e eingeschaltet, so wird der Strom, 
naobdem er die Bleisioberung 7?» dnrebflossen hat, in den 
Kurbeleinsobalter a ointreten. Detzterer gestattet Drabhvider- 
stand in 29 versobiedenen Abstufungen in den Dampenstrom- 
kreis einzusobaiten. Der Strom, welober in das ContactstUck 
m eintritt rmd durob die Aobse der Sebleifkurbel austioten 
muss, mmmt, da eine unmittelbare Verbindung zwischen 
letzterer und m fehlt, den Weg duroh die Drttbte des Wider- 
staudrahmeus o und tritt durob das Contaotsttlok « in die 
Kurbel. Diese vorlttsst or durob ibre Aobse und geht, naobdem 
er den Einsohalter c durohflossen bat, in die weissen Dampen. 
Der Dauf des Stromes ist in der Zeiobnung duroh Pfeile mit 
zunebmender Anzabl derEabnen bezoiobnet. Wird der Strom 
umgesohaltet, so dass er durob die rothen oder grOnen Dampen 
geht, so durobffiesst er, entspreobend wie oben besohrieben, 
die Bleisioberung Bs, den Kurbeleinsobalter h und den Draht^ 
widerstand /. 

Die 900 Dampen, welobe jeden Abend im Betiiebe sind, 
liefern tlbrigens meist weniger als 900 X 16 = 14400 Normal- 
kerzen, da eine gewisse Anzabl der Dampen, z. B. die des 

Elektrischo BeleOchtung von Tlientem. 

Zusobauerranmes, wtthrond gespielt wird, weit unter ihrer nor- 
malen LiolitsfcUvke brennen. 

Die sttmmtlioben Glilbliebtlampen des Zusobauerranmes 
sind mit oifBrmig gostaltoten Milohglasglooken umgeben, welobe 
das Diobt leider um etwa 40 pCt. absobwaoben. Eine Dampfung 
des Diobtos, welobe im vorliegenden Ealle offenbar eine zu 
■Starke ist, ist gegon den WiUen der Eloktroteohniker auf be- 
sonderen Wunsob dor Ai-obitokton gosobebon, weil letztere be- 
fttrobteten, dnss man boi ungedampfton Dampen zu viele 
Sehaden an iliror Doooration, namontliob an der Vorgoldung, 
ontdockon wflrdo. Ebonso sind die moisten Dampen an den 
Kronlouehtoi-n im Tropponhaus und im Eoyor mit Milobglas- 
glookon vorsobon. Dagegen spendon die in der VorbaUe an 
anssorst gesohmackvollen zwoiarmigon Tragem angebraohten 
und die in don Eliiron vorbandonon Dampen ibr voiles Diobt. 
Dio Branndauor dor GKUUampen soil mindestons 700 Stunden 

Als Nothbeleucbtung dienen 80 von aussen vontilirte Da- 
temon, weloho sebr gesohiokt vortboilt sind. 

4. Belouobtung des Elatzos vor dom Theater. 

Hierzu dienen fflnf Gramme’sobo, duroh die fUnfpferdigo 
Dynamomasobino dessolbonErfindera gespeiste Bogenliobtlampon 
yon jo 1000 Noi-malkorzen. Gerado wio beim Savoy - Theater 
in Dondon wird dor Elatz vor dem Theater zweokmassigor- 
weiso durob Bogoulioht orleuobtot. Es ist durohaus falsoh, 
die Glflbliebtbeleuobtung gegen die BogenKobtbeleuobtung in 
don Kampf zu fubren; beide Beleuobtimgsarten kOunen 
friodlieh noben oinander bestobou Das BogenHobt, weil es 
billig grosse Diobtquollon Uefert, weudo man zur Beleuobtung 
von froion Elatzen, Bahnbofsballen, grossen Eabrikraumen und 


Deataohe Edison GoBellsohaft. 

dergl, an, den Gldhlichtem lasse man die gesohlossenen nnd 
besondera sololie Bilume, bei donen os anf eino angenebme und 
■wirksame Beleuohtung ankommt. 

Z«m Sohlusse mOohto ioh nun ansftlhrlioh auf die Vorzttge 
der elektrisoben GKlhlichtbelonolitung gegentlbor dor Gnsbe- 
leuohtung eingebon. 

Dio Liobtwirkung der Gltllilampen iat eine ausserordent- 
liob glftnzende; sie geben ein angonebmeres imd weisseres 
Liobt ala Gas. Die Darbon warden weniger vorandert ala dnrch 
das Gaslioht; donselben wird ein besonders warmer Ton ver- 
lieben, imd selbst kaltero ParbentOne gelangen zn lebhafterer 
Wirkung. Einer Verbindnng von Bogenlioht raid Glflhlicht 
zur Beleuohtung von gesohlossenen Ettumen, wie solche im 
Mflnohener Theater stattgefundon und aus Okonomisoben 
Griinden empfohlen wird, mOohte ioh nioht das "Wort reden. 
Dns Bogenlioht, selbst wenn es, wie in Milnohen, dnrch >^~t t e 
Soheiben gemildert wird, ruft immer kalte ParbontOne hervor, 
welohe Thatsaohe gerade bei einer Verbindnng beider Be- 
leuohtungsarten besonders horvortreton muss. Entschliesst 
man sioh einmal zur Einfiilirung der elektrischen Beleuohtung, 
so beleuchte man gesohmflokte Eaume, um sie zn voller Wir- 
kung zu bringen, aussohliesslioh mit Gltthlampen. Ein woiterer 
Vorzug der letztereu besteht in der Eulio nnd Gleiclunassig- 
keit, mit der sie brennen; dies maoht sioh besonders auf der 
Bflhne angenehm bemerkbar, wo sonst die vielen offen bronnen- 
den Gasflammen duroh ihr Plaokem die Sohauspielor sehr 

Infolge der geringen ■Warmeentwioklung der Glilhlampen 
nimmt die Temperatur im Laufe des Abends nur sehr wenig 
zu. Bei einem fast vollen Theater in Brttnn betrug die Tem¬ 
peratur am Anfange der Vorstellung im Parquet WE., im 

_ Elektrisohe Belpnchtung von Theatem. 

Amphitlieater 15,6° E., gegen Ende der Vorstellung enfr: 
spreohend 15,6° E. und 17° E. Die Temperatur war also 
wahrend der Vorstellung unter dem Daohe nur um 1,6° E. go- 
stiogen! Im Savoy-Theater betrug die Temperatur bei aus- 
vorkauftem House und gegen Ende der Vorstellung ebenfalls 
nur 17° E. Die Luft im Theater behalt aber nioht nur eine 
angenebme Temperatur, sondem sie wird ouoh nioht verdorben 
wie dies bei der Gasbeleuohtung duroh die Verbrennungspro- 
ducte des Gases der Pall ist*). Die elektrisohe Beleuohtung 
wil'd daher in gesimdheitlioher Hinsioht sowohl auf die Zu- 
sohauer als auoh namentlioli auf das Btthnenpersonal eineu 
sehr gOnstigen Einfluss ausaben. 

Aus diesen Eigensohaften des elektrisoben Liohtes folgt 
ferner mit Nothwendigkeit, dass die Deoorationen und Male- 
reien viol langer erhalten. bloiben und daher die Kosten fflr 
Emenernng, bezw. Ausbessenmg derselben bedeutend vermindert 
werdon. Dnd in der Tnat, das Savoy-Theater, welches dooh 
bereits vor l'/< Jahren erOffnet worden ist, maoht in seinen 
Innenraumen den Eindruok, als wenn es eben aus der 
des Arohitekten hervorgegangen ware. Die sohadliohe Wir- 
kuug der Gasbeleuohtung dagegen kann, wenn es sioh nioht 
nur um gowOhnliohe DeoorationsgegeustUnde handelt, sehr 
grosse, ofl unersetzbare Verluste herbeifahren. So sind z. B. 
im Poyer der grossen Pariser Oper einige der von ersten 
Meistem ausgefilhrten DeokengemOlde sohon naoh wenigen 

*) tVio wenig die Lnft bei Anwondung el 
yorsehloolitort wird. gold wohl am boston aus dor Tliatsnclio Iiorvor, dass 
im BrUnnor Thoator, wolobos boroits, als man sioh znr Einfuhrung dor 
oloktnschen Bolouohtung ontsobloss, mit oinor ansgozoiohnoton Vonti- 
lationsoinriohtung vorsohon war, wodor dor im KoUor anfgostollto Venti¬ 
lator, nooh dor im Daobgosobosso bofindlioho Exliaustor far gowOhnlioh 
bonntzt wird. Nnr Somitags, wonn oino NnohmittagsvorstoUung statt- 
findo^ wird zivischon dor orston nnd zwoiton Vorstolhmg dor Ventilator 
auf erne lialbo Stundo in Botriob gosotzt. 

Doutsolie Edison Goscllsolinft. 

Jalu-on duroh Ablagoi-ung einer Soliiolit von AnsscLoidimgs- 
stoffen, von dor Gasverbrenmmg beiTflbrond, fast gilnzlich vor- 
niohtet worden. 

Ein Hauptgnind am- EinfUbning dor oloktrisolion Bolonoh- 
tung in Theatom liegt in iliror grossoii Sioberheit gogon 

Die Construction dor Glttblampon sohliesst die MOglioli- 
koit, dass ein in ibro Nilbo gebraohtor, loicbt bronnbaror 
KOrper Fouel- fangen kOnnte, aus. Briobt die Glasglooko ent- 
zwei, so erlisobt die Larape infolge Verbronnens des Koblen- 
bflgels niigenbliokliob. Eiuo EntzUndnng in der Nabe befind- 
liober, leiobt brennbarer KOi^or tritt, wio Versuobe gozoigt 
baben, selbst in diesem Eallo nicbt ein. Dnrob die Leitimgon 
kann Eeuersgefabr nicbt entstebeu, wonn die Anlage so sorg- 
fbltig ausgofilbrt ist, wie im Savoy- und im Brilnner Tboater, 
d. b., -wenn eine genflgeude Anzalil Bleisicberungon in den 
Leitungen vorlianden ist. Tritt in diesem Falle dann an irgond 
einei Stelle der Leitung durob kui'zen Sohbiss eine 
der Leitungen ein, so sobmilzt der zunttobst oingesohaltoto 
Bloistroifon ab, bovor der Drabt zum Glilben kommt. In 
Brann bat man siob durob Versuobe Uberaongt, dass boi einom 
Kurzscbluss in der That dieso Siohorboitsvomobtnng ricbtig 
wirkt. Die sttmmtliolien von Hm. Sobilling im Joumnl far 
Gasbeleuobtung 1885 Bd. 26 S. 639 u. f. angofttbrton Brando, 
■welobo auf ein Glttbendwordon von Leitungen zurttokgeitllu-t 
worden, sind ontwoder vor dom Bekanntwerden der Bloi- 
siober-ungen entstanden, oder aber man bat die Bonutznng der 
letzteren versttumt, Auob das von Hni. Scliilling vorgefubrto 
Bodenken gegen eloktrisobe Beleuobtung dflrfto biniJlUig sein 
dass bei ausbreobendem Feuor diese Belenobtnng sogleicb gttnz- 
liob vorsago; die Leitungen selbst sind mindostens nicbt mebr 
gofllbrdet, als die Eobrloitungen der Gasbeleuobtung, und die 

ZerstOrung der einzelnen Liobter kann nur in dem Masse all- 
mabliob erfolgen, wie das Feuer um siob gi’eift. 

Man bedenlte nun, wioviel leiobter in einem durob Gas 
orleuoliteten Theater Eeuersgefabr entsteben kann. Hier brennen 
offene Gasflammen, die nur durob breitmasobige Drabtgitter 
von don bronnbaraten Steffnii n- 

gowObuhob diu-ob kleino, auf einer Sti 
pen gesobiebt; soil doob auob das gi 
ob Unvorsiobtigkeit beim Ansteoken 
tanden sein*). A. Folsob giebt in sei 
ode an, dass diese moistens durob off 

Deutsoho Edison Gcsollaohaft 

Dsr Director einer unserer griisseren BlUinen, weloher 
ebenfalls daa BrUnner Theater eingehend besiohtigt bat, spraoh 
mir gegenflber seme Ansioht dahin aiis, dass die elektrisclie 
Belenohtungsanlage desselben alien den Erfordemissen ent- 
spraobe, welohe man an eine BUbnenbeleuobtung stellen mtlsse. 
Er meinte nur, dass siob die Herstellung der farbigen Dampen 
durcb Ueberziehen derselben mit GelatinehiUlen nicht be- 
wttbren wilrde, und dass man bosser tbim wtlrde, die Glab- 
lampen gleiob aus farbigem Glaso herziistellen. Mein Gewbhrs- 
mann lobte besonders die Rube und GleicbmOssigkeit des 
Licbtes und meinte, dass die neue Beleuohtnngsart wegen ihrer 
geringen ‘Warmeentwicklung besonders einen gUnstigen Ein- 
fluss auf den Gesundbeitszustand der Sohauspieler austtben 
mtlsse. Die elektrisobe Glahliohtbeleuohtung sei unzweifelbaft 
die zuktlnftige Beleuobtung der BUhnen. 

Dm Dinen, m. H., noob einen weiteren Beweis fiiir die 
Brauohbarkeit der Gltihliobtbeleucbtung zu geben, erlanbe ich 
mir, Ibnen einen Absobnitt aus einem Beriobte vorzulesen, 
weloben die kaiserl. Generaldireotion der Eeiehseisenbahnen 
liber die in grOsserem Massstabe mit elektrisoher Beleuchtung 
ausgefUbrteu Versuohe verOffentliobt hat. Es lieisst in dem- 
selben: „Die Generaldireotion glaubt aus den vorliegenden 
Ergebnissen sobliessen zu dilrfen, dass die BiBVtrisoliB Be- 
leuohtung im allgemeinen bezUgliob der 'Kostenfrage mit der 
Gasbeleuobtung in ivirksamen Wettkampf treten kanu, und 
dass insbesondere die Gltlbliohtbeleucbtung wegen ihrer 
Gefabrlosigkeit, wegen der geringen 'Wili-meentwicklung der 
Dampen, wegen der Rube, GleiebfOi-migkeit und angenebmen 
Pttrbung des Diobtes, sotvie sobliesslich wegen der beqnemen 
Unterbaltung der Belenohtungseinricbtungen far gescblossene 
Raume, .■WartesOle und Bureaux den Vorzug vor jeder anderen 
Beleuobtungsart verdiant“. 

Elektrisobe Beleuchtung von Thestom. 

Auf diesen Berioht der kaiserl. Generaldireotion ist meiner 
Meinung naoh der grOsste Werth zu legen, da wir in dem- 
selben ein unparteiisobos, niobt duroh gesebaftliobe Intei"- 
essen beeinflusstes Urteil flnden. Die kaiserl. Generaldireotion 
beabsicbtigte ledigliob, durob ibre Versuobe die beste Be- 
leucbtungsart far den neuen Bahnbof in Strassburg ausfindig 
zu maoben. 

Als Rachtheil der elektrisoben Beleuchtung wird ange- 
geben, dass dieselbe niobt so grosse Betriebssicberbeit biete 
wie die Gasbeleuobtung. Aber, m. H., wUrde siob der Besitzer 
des Savoy-Theaters, in welobem eine ■ vollstttndige, jeden 
Angenblick brauchbaro Gaseinriobtung vorbanden ist, naohdem 
er die elektrisobe Beleuobtung ein Jahr lang in seinem 
Theater erprobt batte, wohl entsohlossen baben, dieselbe ttun 
endgOltig einzuftlbren, wenn dieselbe niobt die genflgende 
Sicherbeit geboten batte? lob mUohte meinen, dass ein Jabr 
genOge, um olle mOgliohen Erfabrungen zu sammeln. Das 
BrOnner Theater war ja freiliob erst vier "Wooben im Betriebe, 
als ioh dort war. In dieser Zeit batte die Beleuobtung aber 
niobt ein einziges Mai, aucb niobt fiir Seounden, veraagt. 
Und ioh meine, die Untemebmer,-welobe die Einiiohtung der 
BrOnner Anlage Obemommen batten, mussten ihrer Saobe 
wobl sehr sicker sein, denn sonst batten sie die schweren 
Strafbestimmungen, welobe im Vertrage mit der Stadt Brtlnn 
enthalten sind, niobt angenommen. 

Debar die Anlage- und Betriebskosten der beiden Au- 
logen kann icb Dinen leider niobt so genaue und ansfObrliobe 
Zalilen geben, wie es wttnsobenswerth ware. Die Anlage- 
und Betriebskosten der provisorisohen Anlage des Savoy-Tbea- 
ters sind offenbar viel bober, ala sie sein wttrden, wenn die 
Anlage einen dauemden Cbarakter trOge. 

bald nioht mehr nofclxwendig sein. lob bin in der Logo, Ihnen 
von zuverlttssiger Seite mittbeilon zu kOnnen, dass os zu den 
Aiifgaben dor neuen Edison Gosellsobaft, deron Qrilndung in 
kttrzeater Zoit bier bovorsteht, gebOron wird, znnttcbs6 kleinere 
Centralstationon einzuriobten, von denen der Strom jo naob 
Bedarf an einzelne Theater, Waarenmagazine u. s. w. abgegeben 
wird. Hoffen wir also, m. H., dass die Tage niobt mehr fern 
Sind, wo wir iins in unseren Tbeatem des Vorznges der olek- 
trisoben Beleuohtung erfreiien imd nioht mehr im Sobweisse 
anseres Angesiobtes Kunst geniessen mUssen. Deun wer die 
alektrisohen Theater-Beleuobtungen in London und Brflnn ge- 
jehen bat, muss zugeben, dass wir uns damit niobt mehr im 
Zustande des Vorauohes befinden, sonderu dass wir etwas 
Pertiges und zur allgemeiuen Einffllimng Beifes vor nns baben. 

Die VertliGilung tier Gltthlampoii im Tliontor ist folgomlo: 

.. B-Lnmpon 

2 Soffition zii jo 10 L.. . 20 

2 SofUfcton Jixi je 0 L.. 

30 an don drei Gnllorion angobiaohto Triigor 

j® 2 L.„ „ 

i Trttgor zu jo 4 L., nngobraolit nn don boidon 
Seiton dor Bdlmo, nnho den Prosooniiims- 


MindonviorMurengloiohmassigvertheiltoL. 24 „ „ 

3 L. anf don Muron vor den Spiogoln ... 6 

10 in vorsoliiedenon Logon augebracl ito L. . 10 

Snmmo 182 B-Lainpon. 

:n der Vorl.allo . .. g A-Lampon 

Jober den Eingiingon zu dom Tlioato r ... 3 „ ,, 

Suinmo 11 A-Lampon. 

!ur Erlouclitung des Mascliinenraumos dienen 

.20 A-Lampon. 

Dio Lampen der oborsteii Gallorio sind mit Eofloctoi-on 

us weissora Poizollan ansgorilstot. Dio Sofattonlampon sowolil 
Is die Eamponlampon sind mit Eoflootoran aus ijolirtem Eisen- 
loche versehon. Duroh die Anbringung diesor Eoflootoren, 
eloho boi don GMilampon direct (iber donsolbon angobraoht 
erden kOnnon, wird bowirkt, dass das ganzo Licht anf die 
ilbno geworfen werden kann. Diesem Dmstand ist es zu- 
ischreiben, dass trotz der goringen Anzalil von Gltlhlampon 
if der Bdlmo dioso dennooli binreioliend bolonohtot rvird. 

3 ist ebon ein grosser Vorzug dor Gldhlampen, dass sich oin 
ofleotor unmittolbar dber ibnon anbringon Idsst. Dio Dampfung 

Den ziir Speisung dor Gldhlampen etforderliohon Strom 
liefem zwei Edison’solio Dynamomasohinen, Modell Z, zu 
doron Betrieb oino 14 pfordige Dampfmasohine dieht. Das 
Masohinenhons beandet sioh 36,5 m vom Theater entfemt. Die 
boidon Dynamomasohinen arbeiten in gotrennten Stromkreisen. 
Die oino speist die Lampen, welohe sioh dber dem Eingange, 
in dor Vorhallo, in don Logon, in den Eluron und anf dor 
oborston Gallorio dos Zusohanen-aumes beanden; die andero 
versorgt die Lampen dor boidon unteren Gallorien, der Sofatten, 
der Eampe und der vier soitlioh der Bdhne angebraohten 

Die getrennto Zuleitung des Stromes und die angegebene 
Vortheihmg dor Lampen in den boidon Stromki-eisen ist ge- 
wahlt worden, damit, falls oino der oloktrisohen Masoliinen den 
Dionst vorsagou sollto, in koinom Thoilo des Theaters voll- 
Standige Pinstemiss hen-soho. Obwohl oino Aushillfedampf- 
masohine nicht vorhandon ist, lint oino Dnterbroohung dor 
Belonohtung bishor nioht stattgofimden. Dios ist umsoraehr 
horvorziilieben, da die ganze Boleiiohtungsnnlago, weloho nur 
vorlaiiageingoriohtotwiirdo, weit entfemt ist, vollkommenziisoin. 

. Dio Belonohtung ist taglioh 6 Stiinden im Betriebe, dies 
macht im Jnliro 1825 Brennstunden. Es liefem also die 
182 Dampen von 1 Cnrcol Liohtstarko (1 Carool ungefahr 
= 8 Normalkerzen) 332 150 Cnrcol-Bronnstunden, die 31 Lampen 
von 2 Carcels 113150, sammtlioho Dampen zusammen also 
446 300 Carcel-Brennstunclen. 

Dio Kosten der Anlago, bestehend aus oiner Dampf¬ 
masohine, einem Kossel, zwei dynamo-elektrisohen Masohinen 
nobst ZubohOr, einom kleinon Elektromotor. woIpIia,. 

warden, dasa dieselben in Anbefcmoht der Kleinheit der Anlage 
verbaltniasmttssig gross sind, imd dass sioh dieselben bei einer 
grossen Anlage unbedingt niedriger stellen wilrden. 

Die tagliohen Betriebskosten sind folgende: 

200 kg Antbraoit-Kohle, 47,6 fr. die Tonne .... 9,60 fr. 

Bin Masobinenwarter.30|(io , 

Bin Heizer.12,60 „ 

Sohmieren etwa. 260 

taglioh zusammen 64,60 fr. 
Die jahrliclien Unkosten botragen: 

Verzinsung nnd Amortisation mit 20 pCt. 4000 fr. 

Emeuening der Dampen; dieselben brennon durch- 
solmittlioh 800 Stnnden und railssen dalier iinge- 
flllir 2Vjmnl im Jalir emouert werden. Das macbfc 

533 Dampen; jede kostet 3,60 fr. 1865 , 

Betriebskosten 54,60 fr. X 305 . 19892 .. 

zusammen filr 445300 Carcel-Brennstnnden 25767 fr. 

also fflr 1 Caroel-Brennstunde 0,n6ra fr. 

Bei Anwendung von Gas kostet die Caroel-Brenu- 

. 0,0626 „ 

Der franzOsisohe Berichterstatter bemerkt, dass die in 
Eeohnung gezogenen Posten ftlr die elektrisolie Beleuelitungs- 
anlage sehr reiobliob bemessen worden sind. Der sobr hohe 
Gaspreis hat niobt allein seinen Grund in dem hohen Freise 
der importirten englisohen Kohle, sondem namentlioh in-dem 
grossen Verlust an Gas in den DeitungsrOhren, ein Verlust, 
weloher mehr als 30 pCt. des fabrioirten Gases betragt. Diese 
grossen Verluste werden theils duroh eine grosae Ablagerung 
von Aussoheidungsproduoten aus dem sehr mangelhaft go- 
reinigten Gase verursaoht, theUs baben sie ibren Grund in der 
versobiedenen Ausdebnung der Gasometer und der Eabren tiber 

Elektrische Be 

eleuobtung von Theatom, 41 

Tage, welobe einer tropisoben Sonne und den Eohren unter 
der Brde, welobe einer viel niedrigeren und gleiobmttssigeren 
Temperatur ausgesetzt sind. 

Bine TJnterbreohung dor besobriebenen Anlage bat, -(vie 
bereits oben erwilhnt, bisber niobt stnttgefunden; das Edi- 
son’scho elektrische Beleuobtungssystem bat siob also uuoh 
bier sehr. gut bewflbrt. Eine ganz besondere Annebmliobkeit 
verschnffi> die ' elektrische Beloucbtung in einem tropischen 
Dande Hirer geringen ’Warmeentwicklung wegen dem PubUkum 
und den Sohauspielem. Der Untorscbied der durcb die Gas- 
und die elektrische Belenchtung vemrsacbten Temperatur im 
Theater bei gloicher busserer Temperatur ist mebrere Mole ge- 
messen worden; or botrug niobt weniger als 8° 0.! 

Das Bijou-Theater in Boston. 

Am 12. December v. J. ist in Amerika die erste Tbeater- 
Belenchtung nacb Edison’sobem System, nbrnliob die des 
Bijou-Theaters in Boston, in Betrieb gesetzt worden. Es 
sind ungofilhr 650 GHlblampen im Theater 'vorbanden. Die 
Masohinenanlage, welohe 160 m weit von dem Theater unter- 
gebraoht ist, bosteht aus einem Dampfkessel von Babcock und 
■Wilcox, einer Dnmpfmnsobino von Dawrenoe und zwei Edi- 
son’sohenDynamomnsohinen, Modell K. Der Strom wird mittelst 
Edison-Kabol zum Theater geleitet. Dn Erdgesoboss auf der 
reohton Seito der BUhne befinden sioh die Stromeinsohalter 
und die zur Eognlirung der Diohtstarko dor Dampen 
Apparate, von welohen aus die Deitungen duroh das gahze 
Bans vertheilt werden. Es sind drei Eegulirungsapparato vor- 
handen; der eine fUr den Znsobauerraum, dor zweite fllr die 
Sofdtten-, dor dritte ftir die Prosoeniumslampen. 

DmiteclKi Edison Gosellaclmft. 

Dio Vorfclieiluiig dor Lumpon im Tlioater i»t folgende. 
Die Btllmo wird orlouolitet diiroh 192 mit Beflootoren ver- 
sohono Lampon, wolcho in droi Boihon an don Portnlcoulisson 
angebraold, sind, nnd duroli 140 obonfalls mit Eofloctoron ver- 
soliono Sof'fittonlampon. Eamponlampon sind niolit vorhnnden. 
An dom im Znsolianorranmo bofindliclion solir scliOnon Kiystall- 
Kronlouolitor sind (jO Lampon angebraolit; anasordom sind nocli 
droi kloinoro Kronlouolitor mit jo 18 Lampon vorliimdon. In 
don Logon und Gallorioii breunon 88 Lampon. Dio Troppo 
wird duroli 3 Kandolabor mit jo 12 Lampon und das Foyer 
durcli 1 Kandolabor mit (i und duroli 2 Kandolabor mit jo 
3 Lampon orloiiolitot. Ziir Boloiiolitiing dor Bureaux dienon 
•I Kroiilouclitor mit jo 4 Lampon und oiiior mit 9 Lampon. 
Endlicli bofindot sioli vor dom Tlioator oin Kandolabor mit 
40 Lampon. Es mag bomorkt wordon, diiss die Anlngo innor- 
lialb zwoi Woolion nacii dom gegoboiion Anftrngo aiisgefillirt 
wordon ist. 

Das Theatre du Parc in Brussel. 

Soit dom .5. Milrz d. J. wird aiicli das Tlioatro dn Pare 
in Briissol iiaoli Edison’s System oloktriscli bolonclitot. Das- 
solbo hat 350 A-Lainpoii orhnlton. Dio oloktrisclien Mnsn1.i^o„ 
zwoi AT-Masoliinon, sind 20 m von dom Theater aufgestollt. 
Dor ZiisohaiioiTaum wird duroli 06 Lamiion, wololio on dom 
vorhandonen Kronlouolitor angebraolit sind, und duroh 26 Lam- 
pon, wolcho sioh seitlioh von dor Bttlmo bofinden, erlenclitet. 
Dio Eampe hat 26 Lampon mit mattom Glas erlialten. An 
don LampongestoUen zivisohon den Soffltton sind jo 10 Lampon 
angebraolit. Dio Eluro doa Theaters, die Zimmer der KOnstler 
imd dor Platz vor dom Theater wordon ebenfalla durcli GlOli- 
lampen orlouohtot. 

Eloktriselio Boleuolitaas 


Beleuchtung des kgl. Residenz-Theaters in Miinchen 
nach Edison’s System.*) 

Dor von iins im Milrzhefte dor Zoitsohrift aiisgesproohene 
Wunsch, mOglichst bald aiioli die doiitsohon Tlioator oloktriscli 
bolonclitot zii sohen, aohoint schnollor, als orwartot, in Er- 
lilUiing zii golion. Beroits am 25. Mai fand dio orsto Vor- 
stellnng im kgl. Eosidonz-Tlioator in Munohen boi olektrisolier 
GlOliliclitboleiiclitiing statt, und orrang dio neiio Bolbuohtungs- 
art einon glttnzoiideu Erfolg. Wir wollen hior oino kiirzo Bo- 
schroibung dioser interossanton Anlngo gobon, ohne iiilhor auf 
die bosonderon Eim-iolitiingen des Edison’sehen Bolouohtiings- 
systems fttr Tlieaterzwooko oinzugohon, da diesolbon beroits 
in dom oben bozoiohnoten Aufsntzo ausftlhrlich besprochon 
wordon sind. 

Das kleino, otwa GOO Porsonon fnssondo Eesidonz-Tlioator, 
welches soiner roielion, im sohOnston Barookstil gohaltenen 
Ausstattung wegen fllr dio oloktrisoho Gltthliohtbolouohtiing 
sicli bosondera oignot, wird duroh iiiigefitlir 800 Edison-GlUh- 
lampen erlenclitet. Don Strom liofem droi Edison’scho 
Dynamomnschinen, ModeU K, von denon jedo ftlr 250 seohs- 
zehnkorzige bezw. 500 nohtkerzigo Lampon oonstniirt ist. Dio- 
selben arbeiten in oinem Stromkreiso und sind paraUol ge- 
sclialtet. Als Motoren dionen droi Compoiind-Dnmpfmnsohinen 
dor Eirma Enston, Proctor & Co. in Lincoln von jo 40Pfdkr., 
wolcho in dom zwiaohen dom Eesidenz-Tlientor und dom Hof- 

♦) Aua dor Zoitsolirit't dos Voroiiis doutsohor lugoiiiouro. Juli- 
holt 1883. 

Doutaoho Edison Geaellscliaft. 

und Nationnl-Thottter bofindliolion Hofo anfgestolU sind. Vor- 
mittelat ledemer Troibriomon, deren mit oinander 
verbvmden sind, dnss jeder Voraprung voimiedon ist, wird die 
Kraft auf eino gomeinsamo TransmissionswoUo llbortragon, von 
weloher aus die drei im Kollergesebosso des Tlioators stelien- 
den Dynamomasoliinen getrieben worden; lotztere maclien 
900 TJmdrohungon in der Minute. Dor erzongte Strom wird 
unweit von don Dynamoraa-soliinen, in llhniiclier Woise wio 
bei der Brilnnor Anlnge, in zwei Storakreiso getbeilt, von 
denen der eino die sog. Haiisleitnng, dor nndero die Loitung 
fUr den Billmen- und Zusolinuon-aum bildot. Dio Vertheilung 
der Dampen im ganzen Theater ist die folgondo: 


Treppen, Dlure u. s. w. . . 58 sechszelmkerzigo Dampen 

” " . . 6 aohtkoi-zige 

Ankleidezimmer . . . ._24^ol.szebnkerzige ’’ 


7 Soffitten . . . zi 
2 Portalooiilissen,, 
12 Coulissen . . . „ 
6 Versetzsttlcke 

Baleon-Beleuobtung . 

35 - 245 seoliszohnkorzige Dampen 
10= 20 

• GO sechszohnkerzigo Dampen 
■ 96 ach tkerzign 



16 eoohszehnkerzige Dam pen 16 
Im ganzen 766. 

Die sltmmtlicben Dampen sind nioht, wie im Zusohauer 
raumo des Brtinner Tlioaters, mit Milohglasglookon umgeben 
sondeip strahlen vielmehr ihr voiles Dicht aus, ohne dass da' 
duroh, Avie hiUifig behauptet wird, etwa eine unangenehme 
Einwirknng auf die Augon bemerkbar wllrde. Im Gegentheil, 
gei-ado im Eosidonz-Theater kounte man von einom Abend, 
an dom nook mit Gas beleuohtot wurde, zum nndereu, an dem 
das elektrisclie Dicht brannte, von neuem und hberzeugend er- 
kennen, wieviel mal angenelimer das elektrisohe GlUhlioht dem 
Auge ist als das Gaslioht. 

Withrend hei Gasbeleuohtung die BUhne den Eindruek 
machte, als sei sie mit dicker, zittemder Duft erfuUt, ersohienen 
bei dor elektrischen Boleuohtung alle Personen und Gegen- 
stfi.nde dem Auge ausserordentlioh klar und nahe gerflokt. 

Das wesontlioho der Einriohtung des auf der linken Seiie 
der Bnlme an dor Prosceniumswand angebraohten Diohtstttrken- 
Eogulirapparates ist boreits im Mttrzhefte d. Zsohft. d. V. d. 
Ing. S. 200 besohrieben worden. Es miige bier nooh angeftlhrt 
wei'den, dass im Ganzen 29 Eegulinmgshebol vorhandon sind, und 
zwar je 7 fllr die Coulissen, 7 filr die Soffitten, 2 ftlr die beiden 
Seiten der Bampe, 4 filr die Versetzsttlcke, 1 iUr don Kronleuohter 
und 1 filr die Balooubeleuohtimg. An dem Eegulinmgsapparate 
ist femer eine Vorriohtung angebraoht, duroh welohe es er- 
mOglicht ist, jede Dampengruppe plOtzlioh aufleuohten zu 
lassen, d. h. den Blitz naohzuahmen. Auf dem Eussboden 
der Btlhne befinden sioh 35 Einsohaltstellon, von welohen aus 
dor Strom duroh biegsame Deitungen den Versetzsttloken zn- 
gefahrt wird. 

Wie aus vorstehender Besohreibung heivorgeht, sind zur 
Hervorbringung der Earboneffeote nioht, wio in, Brtlnn, be- 
sondere farbige, in getrennton Stromkreisen arbeitende Dampen 

vorlmnden, vielmelu’ dieut liioraii eiu »iiuiroioker, besouders fllr 
dieson Zwook von dein Obov-Mnsohinenmeiatcr dor kgl. Billmon 
in Mflnobon, Hm. Lnutonaoblilger, eonstniirtor „Universal- 
nppnrat fttr fnvbige Belenclitungseffeoto", wolclicr im wcsciit- 
liolien aus oinor nm das GlHlilainpongestell drohbarcn Trommel 
ails farbiger, (Iber Netzwork gogossoiior Gelatine bestebt mid 
stobond, liegond odor liilngeiid boiiutet werdon kann. Ein Ur- 
tiioii dartlbor, ob die VoiTielitmig ira Brllnnor- oder die iin 
Residenz - Tlieater am moiatoii den praktisoben BedUrfnissen 
entspriolit, kann, da beide Einricbtiingen erst seit knrzer Zeit 
iin Betriebo sind, nooli niclit gofilllt worden. Da bei der 
Brilnner Einriclitiing dreiinai so viel Lampen, als znr wirk- 
iiclieu Bolenobtiing der Bulme iiotbwendig, angobraebt werdcii 
mtlsaen, so vertlieiieni sicli Iiierdiireb die Kosten der Aniage 
erbeblieli; anoli worden die biUifig bin iind ber zii bewegondeu 
Sofiitten- mid Conli.sse'n - Lampongestelle verlillltiiissmilssig 
scliwer. Dagogen biotet dieselbo den Vortboil, dass sowobl 
die Rogiilirmig dor Liclitstilrkon, als aiicb die dor Farben- 
wirkiingen von oiner Centralstello ans fiir jede beliebige Gnippe 
von Lampen beivirkt werdeii kann, wilbrend bei der Voi*- 
riobtmig im Residenz-Tlieater jede einzelno Ti-ominel inittolst 
Selmiirsobeibe iind Sobniir voii Hand gedrebt werdon muss. 

Dio Aniage im Residenz-Tlieater ist von Hm. Pbilip 
Seiibel im Aiiftrage der ziir Ausbeiitiiiig dor Erfindiingon voii 
Thomas Alva Edison in Doiitsebland bcgi-Hiidotcn Dent- 
sebon Edison Gesollscbaft, wolober aiioli die Einn'clitnug 
elektriaober Beleiiebtiing im kgl. Tlieater in Stuttgart flboi^ 
tragon ist, aiisgeftllirt worden. 

Seit dom 28. v. M. wii-d aiioli das Manzoni-Tlienter in 
Mailand init Edison-Gltlblampen erleiichtot, welclie don zii 
ibrein Betrieb oifordorlioben eiektriseben Strom von der gi-ossen, 
daselbst naeli dem New-Yorker Muster eiTiobtoteu Centnd- 

station ans orholteni letztere soil vorlttiifig znm Betriebo vo 
3000 seobszebnkerzigon Gltlblampen dienen, deren Zabl ma 
abor anf lOOOO zti erbolien beabsiobtigt. 

Znr Vollstaudigkeit iinserer Boriebte (Iber elektrisob 
Tbeaterboleiiolitiingen mOge noob bemerkt warden, dass de 
orate Veraiieb dicsor Art in Deiitsoblaiid anf der Bilbno dc 
kgl. Oporabaiises in Berlin diirob don kgl. Ober-Masobiiieii-Iii 
speotor Hni. Brandt aii.sgofillirt worden ist. Seit dem 2!). Mr 
1882 wnrdon oinigo 'Woobon laiig allaboiidliob die beiden erate 
Coulissen dni'cb i2 olektrisebo Gltlblampen erlencbtet; die 
solben brannton in drei Stroinkreisen, von denen dor oine di 
weissen, der zweito die rotben nnd' der dritte die grdne 
Lampen eutbieit. Die Regnlining des Liobtes gelaiig voll 

Im Anseblnss an die vorstobondo Besobroibnng de 
Mllncliener Re.sideiiz-Tlieatei'-Bolenobtniig tbeilen wir anszngr 
woise ein Gntaeliteii mit, welobes am 13. .Inni d. J. von del 
Geb. Rathe Dr. Max von Petteiikofer fiber die Belencbtmi 
des kgl. Residenz-Tlieatera in Miliioboii mit Gas mid mit eloli 
ti'iscbcm Licbte abgegoben wnrde mid wegeii des bolieii Ai: 
sebens seines Verfassora ein bosouderos Iiiteresse beanspnicbe 

Dm don Eintbiss der Gnsbolencbtiing nnd der eloktrisobe 
Belencbtiing anf die Temperatur iind den Kobleiisiinregebal 
der Liift im ganzen Haiise kemien zn lemon, ivnrdeii die biei 
zn erforderliobon Veranebe gleiebzeitig im Parijnet, ira I. nn 
im HI. Range (Gallerio), iind zwar sowobl bei leerom Hansi 
als auob wilbrend dor Tbeatei-vorstollmigen ansgefllbrt. Be 
besetztem Hanso waron jedesmal zwisoben 600 nnd 000 Pei 
son'en im Znsoliaiiorranm anwesend; die Tliei-mometer wnrde 
voii 10 zn 10 Minuteu beobaolitet. Dio Temperatur stieg sc 

Beatsolio Kdiaon Oosollaoliaft. 

Elehtriaehe Beleuclitmig von Tlieatern. 

wohl tei leerem, als auoh bei besetztem Hause vom tiefsten 
Stand am Anfang mit ganz imbedeutenden Scbwankuogen un- 
unterbroobon bis zum bbobsten Stand am Ends. Die Ergeb- 
nisse dieser Versaobe baben zweifellos bewiesen, wie verbblt- 
niaamilssig wenig die Luft durob die elektriscbe, im Gegensatze 
zur Gasbeleuobtung, erbitzt wird. So war z. B. bei leerem 
Hause die TemporaturerbObung im obersten Bange bei Gas- 
beleuobtnng 10 mal (9,9 zu 0,9) grosser als bei olektriscber Be- 
leucbtung; die Tomperaiumntorscbiede in den nnteren BUiunen 
des Theaters waren natiirliob geringer. Bei besetztem Hause 
betrug bei elektriseber Beleuobtung sogar die Temperatnr auf 
der Gallerie (83" C.) annttbemd niobt raebr, als bei der Gas- 
beleuohtung im Parquet (22,9" 0.). 

Endliob muss noob bervorgeboben werden, dass bei An- 
stellung der Versuobe mit der Gasbeleucbtung die Anssen- 
temperatur niedriger -war, ala bei den Versucben mit elek- 
trisober Beleuobtung, so dass also letztere jedenfalls niobt im 
Vortbeil war. 

Der bOobste beobaobtete Kohlensiluregebalt betrug bei be¬ 
setztem Hause: 

bei Gasbeleuobtung .... 2,3 auf Tausend 
bei elektriseber Beleuobtung . 1,8 „ „ 

Der Untersobied ist geringer, als man erwarten sollte, da 
doob bei der Bonutzung von Edison’soben Glttblampen eine 
Koblensttureentwioklung niobt stattfindet, die Zunabme an 
EoblensOure also in diesem Pall aussobliesslicli von den im 
Theater befindlioben Mensoben beiTttlirt. Es muss jedocb be- 
sonders bervorgeboben werden, dass bei der elektriscben'Be¬ 
leuobtung die b'esonders sebttdliohen Produete dor nnvoll- 
standigen Verbrennung des Leuobtgasos, wie Kohlenoxyd, 


KohlenwasserstofF und Sobwefelwasserstoff llberhaupt niobt in 
die Luft gelangen. Uebrigens legt Prof, von Pettdnkofer 
den EoiilensUuTebeobncbtungen einen besonderen 'Worth niobt 
bei und ist vielmebr der Ansiobt, dass dieselben Ofter und 
besonders an mehreren Punkten des Theaters ausgeftlhrt werden 
mtlssten, um ein sioberes Eesultat zu erhalten. 

Auf Grand seiner Untersuobungon ziebt Prof, von Petten- 
kofer die folgenden SoblUsse: 

1. dass die elektrisobe Beleuobtung im boben Grade die 
Heberbitznng der Luft im Theater verhindere; 

2. dass sie allerdings an und fUr sieb niobt im Stande sei, 
die Lttftung des Theaters entbebrliob zu maoben, d'ass sie aber 
eine geringere Lttftung desselben erfordere als die Gasbeleuob¬ 
tung, bei welober die Lttftimg niobt nur gegen die Luftver- 
derbniss durob Mensoben, soudem auob gegen die Hitze und 
die Vorbrennungsproduote der Plamme geriobtet werden mttsse, 
wilhrend sie es bei elektriseber Beleuobtung nur mit dem 
Atbem und den Hautausdttnstungen der Mensoben und deren 
Polgen zn tbun babe. 

Beleuohtungs - Anlage des Residenztheaters 
in Stuttgart. 

Das Stiittgartor Bosidenztheater ist boi seinom im Lntifb 
lies Sommers 1883 stattgeliabten Tlmbaiio gleiclifalls mit 
alektrisolier lleleiiolitnug iiaoli Edison’s System vorsehen 

Dor baulioho Theil*) der ganzen Anlago zerfiUlt in das 
Kessolliaiis mit dom Kamin iind das Mnsc}iinenlmn.s, zwci ein- 
stiiokige massive, mit sclimiedeeisemen DacIislDlilen ilberdcckto 
Qobilude von jo 2fi0 qm QrnndflUolio, vvolclio liiiifer dein 
Theatergobilude orriclitot sind. Im Ke.sselliauso befindon sick 
4 neben oinaudor eingomauerte Dampfkessel (Patent Gr. Kuhn 
in Berg) mit rauohverzolirendon Fenorungen (System Ton- 
brink). .TederKessel bosteht aus oinom Oberkessel von l,inm 
Dnrohmossor uud 6,02 m Litngo, 2 darmitor liegendon Vor- 
wilrmerii von jo 0,o3 m Diirelimessor und 6,30 m Lilnge, oinem 
gi’Osseren iind einem kleiueron Quersieder. Die gesaminte 
Heizfliloho jedes diosor Kossel berocbnet sioh nnf 33 qm, und 
da fUr den regelrocliten Betrieb der Dampfmascliinon und dor 
Centrnldampflieizungsanlago 3 Kessel ansreichon, so vorbleibt 
der 4. Eessel fill* die Ausbilfe. Die mit alien erforderliclien 
Heiz- und Sloborbeitsarmntureu ausgei-Usteton Kessol vverdon 

In dem Masohinenhause beibaden sioh, ebenfalls von G-. Kuhn 
goliefert, 2 Oompounddampfmasohinen mit Condensation und 
von je 60 bis lOOPferdekrnft bei 130 Umdrehungen, 4 dynamo- 
elektrisohe Edison’scbe Maschinen (Modell K), jede ftlr 260 
Qlflhlampen von 16 Normalkerzen, eine kleine dynamo- 
elektrische Masohine (Modell E) mit besonderem Motor 
(Dreicylindei-masohine, 400 Umdrehungen) fflr die Notb- 
beleuohtung am Abend und filr die Tagesproben anf der 
Gtthne; ferner der Stromregulirapparat und die Transmissions- 
auloge, ■nrolohe die Maschinen mit einander verbindet; ausser- 
dem sind nooh die Fundameute ftlr eine dritte Componnd- 
dampfmaschino und 2 weitere Edison-Masobinon von gleiober 
QrOsse wio die obigen filr die eUva einzuriobtende elektrisobe 
Belenohtnng des kgl. Eesidenzsoblosses vorgesebeu. Die Dampf- 
moschinen mit Meyor’sober Expansiousstouoning, welobe 
mittelst Knllttel’soherEegulatoren betbittigt werden, zeiobnen 
sioh boi dor sobr hoben Umdrebungszahl (130) dnrob rubigen 
Gang aus; aie sind solid oonstniirt und so angelegt, dnss bei 
ointretonderEoparatnrhedtlrfligkoit einer der beiden Mascbinen 
die andere znm Betriebe der Gesamintanlago berangezogeu 
werden kaun. Dio Sobwungrilder sind als Eiemeiiscbeibon 
ansgefohrt und tlbertragen die gesammte Kraft der Mosobiuon 
auf die in oinfaoher "Weise am Boden angeordnete Traus- 
missionswelle mittelst Lederrlomen und Eeibungskupplnngen 

62_D entaolio Edison QeaollBclial't. 

mit dem eineu Hauptiabel verbunden und von diesem unter 
der BUhne zwei Hanptzweige abgaloitet, von denen der oine 
zum BUhnenregulator fUhrt und der ondere die Hausleitung 
bildet, welobe / leiztere wiederum in drei Stromkreise getbeilt 
ist. Die Blektromagnete der vier Dynamomasoliinen eind unter 
sioli durch Parallelsobaltung verbunden, und wird deron Strom- 
zufUhrung durob einen Hauptregulator im Mascbinenbaiiso ver- 
stttrkt odor gesobwiiobt und dadurob die Gesamuitliobtstarke 
im ganzen Gebaudo geregelt. Bin Voltmeter diont zur Beob- 
aobtung der Spanniing und ein optisober Signalapparat zeigt 
durob jeweiliges Enfzflnden einer rotbonbezw. oinergrllnenLampe 
an, ob die Spannung flber bozw. unter die NormalliObo gekoinmen 
ist. Bei normaler Spannung brennt keine dieser beiden Dampen. 

Der Bolmenrogulator ist auf der roobton Froscenbunsseite 
angeordnet und Uber demselben der dazu gebOrige Bbeostat. 
Der Regulator ontbttlt 32 Begulirbebol, durob welcbe die auf 
der Bfllme und im Zusobauerraiuno vortbeilten Dampen bell oder 
dunkel gestellt werden kOnneu. Dios wird b’ewirkt, indem 
durob einfaobe Drebung der Hebei, einzeln oder gruppenweise, 
die entspreobeuden "Widerstande in die betreffenden Strom- 
kroise allmabliob eingosohaltet werden. Auf der BObne 
befinden aiob 30 Stromkreise, welobe folgendermaassen ver- 
tboiltsind: reobte und linlce Eampen-, 8 Sofitten-, 16 Coulissen-, 
roobte und links Versatz- und soliliesslicb reobte und linke 
Transparentbeleuobtnng. Detztere 4 Objeote besitzen auf 
36 Stellen im BUbnenpodium Einsobaltostellen, durob welobe 
transportable BeleuobtungskOrper zur Effeotbeleuobtnng joderzeit 
loiobt eingesobaltet werden kOnnen. 

Dio Beleuobtung des Zusobauorraums ist in 2 Stromkreise 
getbeilt: Kronleuobter und Balkonbeleuobtung; letztere kann 
auob wieder in drei oinzelne Stromla-eise getrennt werden. 

Dor Bubnenregulator gestattet, wie oben acbon bemerkt, 
die Beleuobtung von ' dor grOssten Helligkeit bis zu voD- 

Eloktrisoto Bolouchtung von Thoatorn. 

stOndiger Dunkelheit in alien Sobattirungon ttberzuftlhren, und 
auf der Bilbne lUsst siob das Diobt durob Vorsobieben farbigor 
Gelatinesobirrae mittelst eines besonderen Meobanismus je 
naob Bedllrfniss gelb, roth oder grfln ferben. Am Regulator 
ist femer eine Vorrioktung angebraoht, durob welobe Blitzo 
oder 'Wetterleuobten naobgeabmt werden kOnnen. Dies ge- 
sohiobt durob Bewogung eines eigonon Hobols, durob weloben 
dio im Stromkreise bofindliobon Widerslttnde auf einen Augen- 
bliok kurz geschaltet worden, infolgo dessen die Dampen bell 
anfleuobten. Die Beleuobtung des Zuschauerraumes gesobiebt 
in der Regol durob don Kronlonobter mit 170 StUok 16-Korzen- 
lampen. Bei festliobor Beleuobtung treien die drei Balkon- 
reilien mit zusammon 159 10-korzigen Dampen binzu. 'Wenn 
silmmtliebe Dampen brennen, so ersobeint das Haus in ilber- 
reioblicb beUem, sobOnom Diobte. AVie nun aber bentzntage 
sebon die Ansprilohe an Beleuobtung Uberbaupt gestiegou 
sind, so dbrfte es siob wobl empfeblon, fitr gewObnliob zu dem 
Eronleucbter noob in der ersten Balkonreibe mindostens je 
oine 16-Kerzenlnmpe an jedem Arme anzubringen und zu ent- 
zilnden. Dadurob wiirdo obne wesentliobe Mebrkosteu der 
untere Tbeil des ZusobaueiToumes mit dem oberen (Iberein- 
stimmend und ausgiebig erbellt sein, bei festlioben Veran- 
lassungen aber eine genOgend auffltUige Zabl von Dampen 
mebr entzfindet werden kOnnen. 

Die Ankleidezimmer des Theaterpersonals sind ebenfaUs 
mit GlOhlampen erleuobtet, welob letztere auf Gelenkarmen 
aufgesetzt sind. GUngo, Treppon, Qarderoben u. dergl. sind 
mit Wand- und Deokenleuobtern versebeu, welobe, 'wie Irtlhor 
bemerkt, von den drei Hauptzufilbrungon im Mittelbaue und 
den beiden Seiten gespoist werden. Jede Abzweigung von 
den Hauptleitungen gesobiebt durob Edison’scbe Blei- 
sobaltungen, so dass ein Uoberbitzen irgsnd einer feblerbaften 
Deitung niemals eintreten kann. 

Die Vertheilung der GlUluamiien im Thealer let ibigende; 

10 111 ^kotzigo Qlttlilempoii 

Btthiio 18 168 150 

Zusolmuemuim 169 209 

Troppeu, Corridoro, 



Gardoroben etc. 272 

AiiWoideziminer iind 

Balletsaal 67 

Masoliiueuliaus 16 

NoUiboleuolitung 33 

Duroli die oingangs angofttlirto Droicylindormaijchine 
wil'd eine Ideiuero Bdisoiiniaiicliino uud daduroh oiiio An- 
zalil von Lampen in ganz getroimtoin Strorakreiso in Botriob 
gohalteu, wolcli letztoro derarfc im ganzen Theater vertheilt 
sind, dass bei Aussorbetriebsetzung der Hanptbelenchtnng 
nooli hinreiehend Lioht vorhandou ist, um sioh nuf Gftngon 
und Troppen zuroolit zu iinden. Diese Kothbelonchtuug 
(33 Lampen) diont zugleioh bei Tage filr die BOhnenarbeiten 
mid die Probon. 

Beim Hauptoingange, bei der Kasso uud anf den Haupl- 
troppen sind die drei Hauptzweigo der Hausbelenohtnng in 
der Weise angelegt, dass abweoliaelnd die Beleuohtmig immer 
aus oinem anderen Stromkreise entnommen wird, so dass bei 
etwivigem Versagen oines Biauptstranges immer nook Strom 
von mindestens oiner der beiden anderen Leituugen zugeibhrt 
wird, diese Stellen also niemals voUstiindig in Dunkel gerathen 

Wir woUeu obigem Beriobte nooli hinzufflgen, dass die be- 
loliriebene Aniage seit dem 16 November v. J. sioh in unnnter- 
brooheuom Betriebe betindot und alien geheglen Brwartungen 
m vollstem Masse entsproohen hat. . 

Zur Vervollstandigung nnserer Mittheilungen Uber d 
Theaterbelenchtiuigeu mSge nooli erwtthnt werden, dass am 
im KOnigl. Hofthenter in Dresden boreils seit geraumi 
Zeit imtor Leitung des Herrn Inspektors B. Billir Versuol 
mit Edison’s GUlhliohtbeleuohtung gemaoht werden. Ur 
zwar komrat hierboi eine Dynamomaschine, Modell L., fi 
160 Sochzohnkorzen-Lampen in Anwendung, wolohe 70 Aoli 
kerzen-Lampen an der Pussrampe und oa. 70 Seohszehnkerzo: 
Lampen in den Corridoren und Troppen d Z 1 i 

speist; letztore sind an Stella der vorhaudonon Nothbeleuchtui 

Wonngloioh sioh sohon aus don vorstohoudon Sohilderungi 
die unbestreitbaro Brauohbarkeit und hohe AViehtigkeit d 
elektrisoheu Glilhliohtboleuohtimg filr Thoaterzwecke ergiel 
so kann doeh als bostor Bowels hiorfilr die Thatsaoho gello 
dass die Kgl. Hofthoator-Intendanz iiiMtlnohen — nao 
dem sie siebon Monato lang die Glflhliohtboleuohtung i 
Besidonz-Theater orprobte — nunmohr der Dents ohc 
Edison Gosollsohaft auoh die Beleuohtmig des Kgl. Ho 
imd Natioualthoaters ilbertragen hat. 




(Volleingezahltes Capital; 5,000,000 Mark) 


L e i p z i g- e r S t r a s-s e 96. 


Stiidten, Strassen, offentlichen und Privatgebauden, Theatern. 
Concertsiilen, CaKs, Hotels, Krankenhausern, Fabriken, Bahn- 
hofen, Bergwerken, submarinen Bauten, Hafen, Werften, Leucht- 
thiirmen, Schiffen u. s. w. 


von Contralstellen zur Lieferung von elektrischem Licht. 

Compania Electrica de Edison 

This folder contains printed material Issued by the Compania Electrica de 
Edison. This company marketed the Edison system of electric lighting and other 
Inventions In Chile, Peru, and Bolivia under the direction of Edison's agent, Willis 
N. Stewart. Company offices were located in Valparaiso, Chile. 

The following items have been filmed: 

1. "El Almacenamiento de la Electricidad por Medio de Baterias Secundarias ~ 
Opinion de Tomas A. Edison" (1884) 

2. "Luz Electrica de Edison" (1885) 


La idea do podor almaconar la electricidad 
no os nuova, i siempro ha seducido a los profa- 
nos i a los liombres do la cioncia. 

Bajo el amparo do ella no lia muclios ailos, 
on Europa i on los Estados Unidos do Norto 
Amdrica, eslieculadores do mala lei abusando 
de la credulidad de grandes capitalistas, ban 
acaiTcado el desprestijio sobre el alumbrado 
eldctrico, con ol fracaso do empresas quo Io¬ 
nian por base la on-dnea aplicacion industrial 
de un principio cientlfico quo on si es vorda- 

La Clara i seiicilla esplicaclon dada por el 
soflor Edison, a este respecto, i quo trascribi- 
mos a continuacion, no dudamos quo producird 
on Chile el mlsmo ofecto quo on Norte Amdrica 
i en Europa: la ruina de esas falaces i engailosas 

Almacenamiento de la Electricidad. 

Tomamos AelBoletinX F//denuestraConipa- 
flla la siguiento entrevista con el seOor Edison 
quo orijinalmento fud publicada en el "Herald" 
de Boston. Habl6 de las baterlas de almaccna- 
miento en los tdrminos siguientes: 

—"iCuill os su opinion, seilor Edison, dice el 
"oscritor”, sobro la utilidad i valor del almaco- 
namiento eldctrico?” 

—"En mi opinion las baterlas para almacenar 
la electricidad son un engaila-bobos, una espe- 
cio para producir sensacion, un mecanismo de 
ostafa hecho por companias por acciones.” 

"iQuerriaustedque repitieseesas espresio- 
nes por la prensa?” 

— "Por cierto que si, puesto que es la verdad. 
El almaconaralonto do la electricidad es una de 
aquellas cosas que seducen la imajinacion; i 
ninguua cosa mas porfecta que tal idea puede 
haber sido deseada por los estafadores por ao- 

— 8 — 

Clones. En 1879 mo ooupd de In oiiostion, o 
injenid un sistemn pnvn colocnr bntorins de al- 
maoennje en las cnsns, unidas a conductores 
matrices para cargarlas durante el dia i doscar- 
garlas en la tardb i hoclie 'piira'el' sdfvlcio de 
Idmparas do incandesconcia. Obtuvd privilejio 
en el mismo ado (olvido la feclia do la patento); 
pore en ello no liai nada do positive. Esperi- 
mentd bajo todos aspectos. Mis' placas fueron 
preparadas como las de las baterlas de Plantd. 
El mdtodo para propararlas i cargarlas os mas 
engorroso; pero es mojor quo el do Enure, una 
vez preparadas. ■ 

"Como usted sabolaprlmernbaterla de Faure 
fud enviada por dsto a Sir 'William Thomson, 
quien a primera vista quedd maravillado de 
ella. So le pidid quo la patrdcinase i consintid 
i aceptd un honorarioj pero despues do una in- 
vestigacion se convoucid do quo en el asunto en 
cuestioii no liabia nada, i dovolid el lionorario 
a la compafiia francesa. El heclio es quo cuanto 
mas investigd tniito mas encontrd el vaclo de 
todo el negocio. . • 

"Por medio de lo quo Labouclidre llama una 
trampa, esta baterla secundaria ha side usa- 
da en Inglaterra por compaflias de arco vol- 

Una sola de estas compaiilas sirvidndose co¬ 
mo punto de apoyo de un noumulador i de una 
lAmpara incandescente, copiado de la mia por un 

tal Lane-Fox, puso on nujo a otras compaiilas 
subsidinrias cuyo capital on conjunto sobrepujd 
de treinta millones de pesos-, i se pagnron por es- 
tas compaiilas inmensas cantidades a la compn- 
Oia primitivaporsus dereclios. Ppeos meses ha 
hizo esplosion la bola do jabon; las accio- 
nes que fueron pagadas a 25 pesos se ofrecen 
por 1 peso, i las compaiilas estafadoras han sido 
perseguidas judicialmente por falsificacion en 
sus prospectos, con relacional valor del acumu- 
lador i al derecho do la himpara incandescente 
del seiior Fox; pues apareco en los procedimien- 
tosseguidos ante el juez Chitty que otra com- 
pailla tieneel derecho do la Idmparai esta com- 
pai'ila ha confesndo que era un robo de la lam- 
para do Edison i pagaba derecho (royalty) a la 
compailla do Edison por su empleo. La deinan- 
daanteeljucz Chitty fud interpuesta por un 
tciiodor do aceiones do una compaiila subsidia- 
ria, exijiendo la devolucion de su cuota, fun- 
diindoso en cl motivo arriba esiDvesado. Se di6 
sentencia a su. favor. 

—r"Pero, no so puede acaso almacenar la eloc- 
tricidadl” ■ , , • 

—"SI. Cientlficamente el asunto esta bien; 
pero comercialmente es un fracazo tanabsoluto 
como uno pueda imajinarso. Puede usted alma- 
cenarla i asegurarla; pero se pierde gradualmeu- 
to i so cscapa con el tiompo.- La las 
baterias una vez que so las ha cargado repeti- 

— 10 — 

das veoes oomienzti a doolinar i su cnpacidad i 
oneijia disminuyeii dospues de cierto tiempo do 
uso, requiriendo mayor niimoro de batorfas pa¬ 
ra sostoner una produccion oonstante. Por efec- 
to de la coiTosion de las placas sustentadoras 
de la baterla; por el ofocto de la accion local i 
por otras caiisas domasiado iiuinorosas para es- 
pecificar, la dopreciacion anual do la baterla ho 
baja do 30 por cieiito de su costo si se usa dia- 

"El becho es quo liai dos o tros compafilas 
que ban organizado on los Estados Unidos, de 
poco tiempo a esta parte, compafilas subsidia- 
rias de arco voltaico. En esto negocio la com- 
pai^a primitiva ba becbo dinero vendiendo ma- 
quinaiia, etc., a las compafilas imlnstrialcs; jib- 
ro dstas no ban becbo negocio i casi ban cesado 
do bacer liuevos pedidos. Abora bicn, estas 
compafilas priraitivas al vcr quo la domandado 
maquinaria aflojaba ban entrado enel negocio do 
las famosas baterlas secundarias. Abora bacen 
esta esposicion, quo es la mayor babilidad que 
jamas baya yo oido: ncaballeros, ustedos tionen 
una gran inversion on maquinarias para sutni- • 
mstrar luz; poro no sacan plata ustedes de todo 
osto. Bueno, nosotros tenomos algo con lo cual 
ustedes puedcn utilizarsu maquinaria. Ustedes 
putdui tiabaj.u notbo i dia, i trabajar mucbo 
mas. Ustedes puedon utilizar sus instaiaciones 
oldctricas actuales dui'ante el dia i asimisrao la. 

— 11 — 

eloctrioidad desarrollada en el dia parn luz in- 
candosoente, i en la noclie ustedes tionen sus 
instaiaciones para luz do arco voltaico directa- 
menteii. Esto suona bien i parece bueno i sano 
ino es asll” El consejo de directores discute la. 
oforta i resuelven que es una gran cosa. Entdn- 
ccs concluyen que doben entrar en el negocio. 

"Voi a decir a usted en ddndo estil el engaflo 
do este plan. Consiste en el becbo do que el 
costo de las baterlas que deben almacenar esta 
olectricidad extra, quo debe jenerarso en el dia, 
seria dos voces mayor quo la de la estacion quo 
la produce; de manera que, si la compafiia ba in- 
vertido ya 100,000 pesos, i convleno en utilizar 
su maquinaria durante el dia con la adicion do 
baterlas do almacenaj'o, encontraril que para lle- 
var adelante su propdsito tendril que invertir 
200,000 pesos en baterlas. Yo garantizo que 
no liabril un solo consejo directivo entre ciento 
que so percibird do ello; i la compafiia primitiva 
no se lo ba do decir basta quo bayan comprado. 

tiAbora bien, ban comprado las baterlas do 
almaconaj'e; por supuesto al precio de 200 mil 
pesos'. Sobre esta inversion al fin del primer 
afio tienen una depreciacion do 30%. Para sal- 
varse tienen que castigar intereses ensu inver¬ 
sion. Tienen tambien que castigar lo bastante 
para bacer fronts a la otra dopreciacion de su 
instalacion por el tiempo que funciona durante 
el dia, i tendrdn que gastar doble cantidad de 

— 12 - 

carbon para obtoncr la misma producoion de 
BUS batcHasipor la razon quc dstas so intorponen 
ontro ol jenorador do onorji'a i la luz; cosa on 
la dial liai una pdrdida tanto al tiempo de oar- 
.garcomo al descargnr, i quo liaiotra pdrdida 
durante su pormanoncia, pdrdida quo auraenta 
a medida quo bi batei'la envejeco, despues do 
habor llogado a cierto mdxirao. 

—j"CuiU os ol milximun do almacenamionto 
quo puedo obtoiiorse con una batorla secunda¬ 

—"Prdximamento os do uii 50%. Obtidnoso 
ol milximun do corrionto cuaiido so utiliza la 
total capaoidad do la batorla, de la misma ma- 
nera quo, on uiia milquiua do vapor, on la cual 
si sc liaco quo ol vapor obro sin ospansion, so 
so piei'do uu 50% dol vapor, aunquo as! so 
obtenga el imlximuii do su encrjla; pero este 
os tambieu cl miuimmi do oconomla. Pol¬ 
io tanto, para proceder economicnmeiito, los 
constructores do motoros do vapor solo pro- 
curau aprovechar un torcio o un cuarto de 
la maxima enerjia do olios; porque, aunquo as! 
so baco mas costosa la construcclon de las mil- 
quinns, no obstante la oconomla quo so obtiene 
trabajando con ospansion compensa los mayo- 
res capitalos invortidos on ellas. 

Cuando dicen quo obtienon un 90% do la 
batorla, d icon algo quo cientiflcamonto°os vor- 
dadero. Asl, olios asegurau quo cada caballo 

— 18 — 

de enbrjla de corrionto do una batorla alimonta 
diezlucosde 16 velas cada una. Aliora bien, 
oso os cierto i no es ciorto. Con un caba¬ 
llo de corrionto oldctrica obtouido por medio 
de una batorla deben obtenerso 10 luces do 16 
veins; poro para conseguirlo forzoso es impedir 
todas las pdrdidas quo so efectikn a traves do 
la batorla, a traves de los conductores, a traves 
del dynamo i otras. So parte con el poder do 
un caballo quo indica el motor. Cierta cahtidad 
de dsto so plerdo para mover la maquinaria 1 el 
dynamo 1 todavla cierta otra cantidad so pierdo 
on el dynamo para convertir fuerza on electri- 
cidad; i esto porque ninguna milquina es per- 
fecta; ademas, cierta cantidad debe perderso 
on el conductor quo reuno la estacion con la 
batorla secundaria; aim otra cantidad so pierde 
en cargar la batorla, por causa de su rosisten- 
cia 0 imporfeecion do mecanismo; aun otra 
cantidad so desperdicia en el intervalo ontro la 
carga i su uso; todavla otra parto tiono quo 
perdorso al descargar la batorla para ol servicio 
do las Idmparas, i como sino fuera bastante, 
otra parte se perderd en ol alambre quo conec- 
ta la batorla a la Mmpara. Asl quo, aquel ca¬ 
ballo de fuerza, tiene ■ quo desvanecerse hasta 
quo solo sumlnistre ol sorvlclo do tres Idmparas 
proximamente; midntras quo si so trabajaso 
diroctamente se obtendria probablemente basta 
sois Idmparas. 

carbon para obtoncr la miama producoion de 
BUS batorlasjpor la razon quo dstas so intorponon 
ontrooljonerador do onorjla i In luz: cosaon 
la dial hai una pdrdida tanto al tiempo de car- 
,gar como al descargar, i quo hai otra pdrdida 
durante suporraaneiioia, pdrdida quo auraontn 
a medida quo la baterfa envejeoo, despues do 
liaoQr llegado a cierto mAximo. 

{ CuiU os ol imlximun do almacenamiehto 
quo puede obtenerso con una batorla socunda- 

-"Prdximamento os do uu 50%. Obtidneso 
el mtlximun do corrionte cuando so utiliza la 
total capacdad do la bateria, de la misma ma- 
noia quo, on una niilquinn do vapor, on la cual 
SI so haco quo el vapor obro sin ospansion, so 
so piordo un 50% del vapor, aunquo asl so 

cnga el milximuu do su onoijia; pero este 
cs tainbiou ol do economln. Por 
JO tanto, para proceder economicainento, los 
constructores do motoros do vapor solo pro- 
curan aprovechar un torcio o un cuarto de 

so haco mas costosa la construccion de lad mil- 

tin'EnT economiaquo so obtlene 

tiabajando con ospansion componsa los inayo- 
res capitalos mvortidos on ellas. ^ 

Cuando diceii quo obtienon’ un 90% do la 
dadoio. Asi, olios asoguran quo cada caballo 

— 18 - 

de enbrjla de corribnto do una batorla nlimonta 
dioziucos de 16 veins cada una. Aliora bien, 
oso 'os cierto i no os ciorto. Con un caba¬ 
llo; de cdrrionto oldotrica obtonido por medio 
do una bateria debou obtenerso 10 luces do 10 
veins; poro para conseguirlo forzoso os impedir 
todas las pdrdidns quo so efectiian a traves do 
la batorla, a traves do los conductores, a traves 
del dynamo i otras. So parte con el poder do 
un caballo quo iudica el motor. Cierta cahtidnd 
de dste so piordo para mover la maquinaria i el 
dynamo i todavla cierta otra cnntidad so pierdo 
on el dynamo para convertir fuerza eh electri- 
cidad; i esto porque ninguna mdquina es por- 
fecta; ademas, cierta cnntidad debe perderso 
on el conductor quo reune la estacion con la 
bateria secundaria; aim otra cnntidad so pierdo 
on cnrgar la bateria, por causa de su resiston- 
cia 0 imporfeccion do mocanismo; aun otra 
cnntidad so desperdicia on el intorvalb entro la 
cargn i su uso; todavla otra parte tione quo 
pordorso at descargar la bateria para el servicio 
do las Idmparas, i como sino fuera bastanto, 
otra'parte so perderA on ol alambre quo conec- 
ta la bateria a la lAmpara. Asl quo, aquel ca- 
bnllo de fuerza, tione quo desvanecerse hasta 
quo solo suministre ol servicio do tres liimparns 
prbximamente; midntrns quo si so tfabajaso 
directamento so obtendria probablemente hasta 
sois Idmparas. 



— 16 — 

- 14 — 

; —"Ud les poga fuerte a los partidarioa de 

las baterias.” 

, po olios babrdn permitido al piiblico invertir. 
fuertdd snmas.” 

—jEntdnces considera Ud. que las baterias 

—"La razon por la cual soi duro con esta 

de almacenaje son del todo impracticables? jNo 

1 jente es porque yo tengo uiia cosa lejltima, i 

babrd esperanza do quo puedan realizar im 

1 a causa de las operaciones de estos sefiores.bai 

lojltimo trabajol 

—-"No bai esperanza alguna. Esceptuado 

1 una pdrdida de la confianza pdblica. Nunca 

1 basta el presente liemos pedido sus dineros al 

un ndmero de cases mui limitados, puede con- 

1 pdblico. Ahora bien,, yo no quiero que se 

siderarse el almacenamiento do la eloctricidad 

I abuse de 61, por cuanto deseo que nuestra 

! comb enteramonto antilogo al almacenamien- 

1 Corapailla liaga su negoeio do luz eldctrica de 

to del gas. Uno de los principales ga’stos do 

1 una manora lojitiina, dando un valor ciorto por 

instalacion do una compaflla de gas es el do 

lo que la Compaflla recibo; i si dsta vendo do- 

la caflerla. El diilmotro medio de sus caflones 

reclios pruebe a los compradores su valor por 

matrices es de 5 a 6 pulgadas. Pero, si se pro- 

medio de rosultados obtenidgs en la prdctica on 

codieso bajo el principio do toner en cada casa 

una dmplia esoala comercial, tal cual bacemos 

un pequeflo gasdmetro se podrian servir do 

a la fecba; de inodo que el poner en evidencia 

una cafleria de una pulgada bajo presion mayor 

j estas cosas ba de bacor mas filcil i mejor el 

quo la que actualmente emplean para forzar el 

i i dxito do mi sistema i el reconocimiento do sus 

gas a traves de los caflones matrices. La dife- 

j mdritos. 

roncia quo economizaria la compaflla do gas 

“El mismo ongailo quo se pretende poiqmetrar 

con este arreglo soria do 15 pesos prdximamon- 

( en los EstadosUnidos ba side planteadoenln- 

to de casa d casa, distantes 25 a 30 pids. Pero, 

glatorra, i on dlimo resultado el piiblico ba per- 

el gasdmetro do cada casa costaria mucbo mas ' 

dido toda confianza en la luz eldctrica. Esta mis-: 

que los 25 pids de caflon matriz quo quedan en- 

ma jente se encuentra establecida aqui. Pro- 

torrados en la callo. Por otra parte, los gasd- 

sentan lo que llaman la Idmpara de Swan que' 

metros no serian quizds, lo mas conveniente on 

es una evidente violacion del dorecbo de la mia. 

manos del piiblico; podria baber esplosiones, al- 

Les bemos demandado on Inglaterra i los do- 

gunos no tendrian lugar para colocarlbs, el ga- 

mandaremos en este pais. Pero, esta jente sabe. 

sOmetro requeriria cierto mecanismo i manipu- 

perfectamente quo so necesita algun tiompo 
para resolver una demanda i durante este tiom- 

III ^ 

— Ifl — 

Iftoion para recluoir la presion nl Umito que so 
necesita; mecanismos que tienen un uso incierto. 

"Elxonooimionto dol pi'iblico al tratarse do 
"mecanismos” es ademas i jeiioralmente incior- 
to; i pi’obablomento, estas causas ban impedido 
a los injenieros do gas ol introducir mi sistema 
do almacenamiento local. 

"La compafiia eldctrica do arco voltaico quo 
trate do introducir un sistema de almaccnajo 
so propono realizar oxactamonto la idea arriba 
espresada. En vez do emplear audios coiiduc- 
tores i electricidad a baja presion, como lo lin¬ 
go yo, inteiitan economizar en el capital de ins- 
talacion usando delgados eonductoros i elec¬ 
tricidad a alta presion; i para liacer que estn 
electricidad sea utilizable reducen su presion 
mediante uiia bateria de almaceiiaje, do la mis- 
ma manera que el gas a alta presion puode ser 
almaconado on un gasdmetro. Su presion redii- 
cenlabastaliacerla utilizable. Eesulta en primer 
lugar quo la corriente de alta presion es mui 
peligrosn para las vidas. La despreciacion de las 
baterlas do almaceiiaje, en un sistema do dis- 
tribucion jenoral, por si sola pagarA el intores 
sobre la mayor cantidad de cobre que se roquiero 
para prescindir del uso de aquellns. Ademas, si 
estos pequeflos conductores do corriontos de al¬ 
ta presion fueran colocados bajo tierra, como 
deben liacerlo todos los sistemas, para ser in- 
dustrialmente duradoros on las grandes ciuda- 

— 17 — 

desi resultarin que el mayor costo, proviniente 
dol nislamiento necosnrio para impedir la filtra- 
cion 0 escape a tan alta presion, deberia pagar 
con exceso la mayor cantidad de cobre que se 
destina en un sistema quo emplea corriontes 
do baja presion, i que no requieren un aisla- 
miento ni tan grande ni tan oostoso. El yalor 
de nuestros conductores matrices eldctiicos es 
de 16 pesos mas o mdnos de casa a casa. Estos 
conductores estdn colocados dos pids bajo el 
suelo, dondo la parte intelijente del pilblicoi no 
puede alcanzarlos bajo el protesto de mejorar- 
los; midntras' que con baterlas de almacena¬ 
miento deben iiivertirse de 75 a 200 pesos en 
baterlas, en cada casa, con el propdsito de reali¬ 
zar una economla de 9 pesos de cobre, i para 
interponer una invencion incierta en que con 
seguridad tione quo porderse el 50% del pre- 
clo de costo. 

—"Aqul el seflor Edison se detuvo un me¬ 
mento, se quedd pensando, i alzando do repen- 
te la cabeza dijo con su especial manera, "tan 
pronto como un individuo se pone a trabajar 
on el negocio de baterias secundarias, al punto 
surje en 61 su capacidad latente para mentir.”- 

—"Pero, supongamos que tuvieramos un 
motor barato tal como el agua ino serla eco- 
nOmlco almacenar la electricidad aun a trueque 
de gran pdrdida de fuerza? 

—"Haciendo uso dol agua como fuerza mo- 

— 18 — 

triz, nunquo ol costo del agua fuera casi nada, 
thdavia liabria quo considoiur el ooato do la ins- 
talacibn para almaceimr la eloetrieidad, a lo cual 
deberia agrogarso los intoreses i la doprccia- 
cion. IDdnde cstd la cconomia entoiicps, cuaiido 
on la mayor parto do los casos coii solo niiir el 
iiamo directameiito a la turbina so piiedo obto-. 
dynor el mismo rosultado i rauclio mas barato? 
Pero os neccsario tambicu toner presento quo 
los motorcs do agua no son tan ocondmicos co- 
mo so croo. Kara voz los quo so sirven do olios 
disponon do un oxcedente do iigua dnranto to- 
do el ailo para utilizarlo on esto scntido. 

"Los individuos quo liablan del almacena- 
miento do la olectricidad dicon qne las Itimpa- 
ras arden mejor, alimontadas por una bateria 
quo per un dynamo. No os asi. Las lilrap'aras so 
maiitioiion mui brillaiitos al empezar; pero si 
do tiempo on tioinpo no so las .alimonta con 
nuevas batorias, su poder luminoso dccreco nl- 
pidainonte. Si so tioiio una bateria quo puoda 
alimeutar dioz luces, i so dosoa njantenerlas on' 
actividad liasta las 10 do la iiocho por ejomplo, 
seril necesario dispoiior do otras batorias para 
refoi'zarla; do otra manora las blniparas dismi- 
nuirilu on podor luminoso dntes do quo espii’o 
su tiempo indicado. I. ontdncos despues do 
apagar las luces, las batorias perdordn prdxi- 
mamouto un quinto do su carga roinanente, ilii- 
tes de quo so las vuelva a cargar. 

— 10 — 

"Hai on osto una lei natural on oontradieioVi 
coil las batorias do almaconamiento, i consisto 
on quo, cunndo ol plomo esta mui dividido des- 
compone ol agua. Es sabido quo cuando sir 
Williams Thomson not6 este fendmeno sac6 de 
una bateria una verdadera esponja metdlica. 
Todos los motales so n un verdadero combusti¬ 
ble i cuando so oxidau se trasforman on cenizas; 
i la operaoion do volverlo su forma metiUica 
priniitiva despues de baber pasado por esta 
. trasformacion requiero el gasto de una enerjia 
considerable. El seflor Brush puede decir quo 
tieno un misto secreto. La verdad del case 
os qne se sirve do una sal do plomo. Emplean 
plotiio i sus baterlas no son sin6 baterias do Fau- 
re lisa i llanamente. Los constructores de las 
batorias Brush dicen quo nocesitan seis meses 
para fabricarlas. Hai factorias on Nueva York 
quo podrian sumiuistrar en solo tres semanas 
6,000 eleaientos de ese sistema! La primitiva 
compafiia de Brush, es una asociacion respeta- 
blo i con responsabilidad; pero la compaiiia do 
almacenamionto do olectricidad Brush i Swan 
tieno todos los visos de ser una corporacion 
quo busca a escudar sus engaflos bajo el patro- 
cinio de la primitiva compaiiia Brush.” 

—"En este momento el sefior Edison tomb 
un diario i leyb algunos estractos de un articu- 
lo referehto a la compaiiia de luz eldctrica de 
Brush i Swan. Com’entiihdolo dijo, ontre' otras 


tosns: "Creo quo existo una Booieclnd pnra im- 
poclir la cmcldnd pnra con los animales, i otra 
ptira impodir la cnieldnd pnra coii los iiinos. 
Actualmonto deboi inii fundar otra pnra impe- 
dir quo Ins jcntes sc eiignfmson a si mismos.” 

El lieclio do recibir dinero por tales nrticulos 
(rellridndoso al quo loin) debla ser considerndo 
como una ofoiisa a la lei; porquo si esto no os 
obteuer dinero con fnlsos pretestos yo no sd lo 
que os.” 

"Volvnmos a las batorias do almacennmien- 
to i coniparomos sii costo i los resultados con 
los do un sistema direeto. Conformo a los re- 
cientes csperiinentos ofectuados en Paris por el 
seilor Tresca en el Conservatorio do Artos i Oft- 
cios, con una bateria do Enure, so ha cncontra- 
dO on las mcjores eondieiones, quo diclia batc- 
ria solo produce el cincuenta por ciento de la 
enoijia del dynamo i el euaroiita i oinco por cien¬ 
to de la del motor. Esta bateria quo alimeutaba 
oneo lamparas durnnto onco horns, tenia uu 
peso do 2,310 libras. Ciento noventa libras do 
bateria eorresponden; pues a dioz hlmparas por 
bora. Si esta bateria se puedo vender a 35 cen¬ 
tavos iibra, el costo por bateria corj'espondieu- 
to a diez hlmparas por bora soril $ 06,50 centa¬ 
vos 0 S 6,05 centavos pnra una lamiiara por 
bora. Pnra 250, luees por una bora, el costo do 
bateria es por lo tanto do § 1002 50 centavos 1 
para seis boras S 9,975. Por consiguiento, una 

— 21 — 

bateria quo puedo alimontar 250 hlmparas du¬ 
rante seis boras importa $ 0,975." 

"Depreciacion, 26 ^.. S 2493 75 

Intorosos, 8 "/o 

Como, segun los rosultados, so 
obtiono dioz hlmparas por cadn ca- 
ballo motor on las batorias secun- 
darins, dosarrollanln 25 cabnllos; 
pero, como solo el 50 por ciento de 
la enerjia desarrollada por el mo¬ 
tor os dovuelta por la bateria, so 
nceositaron para cargarla eyidon- 
temcnto 37,5 caballos durante las 
8 boras. El motor habra dosarrolla- 
do 350 caballos a razon do 4 libras 
do carbon por cada caballo. Un to¬ 
tal do 1,200 libras por dia, o do 

180 tonoladas anualmente, contan- 
do 300 dins, a 4 pesos 50 centavos 
por tonolada bacon. 810 00 

Por intcresos i dopreoiauion, so- 
bro § 3,000, costo del dynamo em- ■ 
pleado en cargar las batorias. 300 00 

Gasto total por apo sin contar 
ol valor del dynamo i de las bato- 
I’ias. 8 4401 75 

Ho aqui ol costo auual para nlimentar250blm- 
paras 6 boras por dia durante 300 dias por medio 

de baterins. Es nocGsarlo observin’ quo en esta 
cuenta solo so ban oargado los intoroses, donro- 
ciacion de la instalacion i costo del combusti¬ 

Comparomos aliora el mismo servioio prac- 
ticado con un sistoma dirocto do olectricidad 
e imluyench el costo del dynamo, i veamos quo 
resultado so obtieno; 

Costo del dynamo. •§ 3000 00 

intereses i depreciacion 10 7„... 300 00 

Este dynamo aliraontando lilm- 
paras directamente requerini 35 
caballos, i para 6 boras uu total 
de 210 caballos. Aceptando como 
en el case anterior que cada ca- 
ballo necesite 4 libras de carbon, 
resultard uu consumo diario de 840 
libras, 0 sean 252,000 libi’as en 300 
dias, o 120 toneladas anuales, quo 
a 4 pesos 50 centavos por tonela¬ 
das bacen. .. 

— 23 - 

contra $ 3,000 quo importaria nuestro sistema 
dirocto. IHo oonsoguido esplicar a Ud. clara- 
monto ol.probloma? 

"Esos son los individiios quo proclnman en 
pomposas circularos que pueden iliiininar moli- 
nos 1 otros establecimientos industrialcs con so¬ 
lo instalar en ellos un pequoflo dynamo que fun- 
cione ocbo boras, i almacenando su electricidad 
dosarrollada, evitando do esta manera el costo 
do una dispendiosa instalacion quo alimeutaso 
directamente las luces. Probablemonto esos in- 
dividuos objetaiiln que yo pongo mui subido 
precio a las baterias; conscntirilu para probarlo 
ou vender osas baterias por mucho mdnos; i 
no scria raro quo biciornn lo que en Inglaterra 
se bizo con la blmpara do Lano-Eox, quo era 
vendida a las compaflias subsidiarias en gran- 
des cantidades a razon do 5 cbelines, midn- 
tras quo su costo de fabricacion era do 12 cbe- 
lincs!” . 

Gasto anual total $ 867, e, mcltt- 
yendo el costo del dynamo no se 

. 3 3867 00 

el mismo servicio con el sistema de baterias Si 

To del dynamo, i • 

de labatena on el case del sistema indirecto, so 
llega a la suma de $ 12,975 para la instalacion. 

- baterins. Es nocesario obsomr quo on esta 
ouonta solo so ban cavgado los intorosos, dopro- 
ciacion do la instalaoion i costo dol combusti- 


icado con un sistoma dlrocto do olectricidad, 
xcsultaclo sc obticno: ^ 

Costo del dj^amo. •§ 3000 OO 

III 01 OSes 1 depreciacion 10 . 300 00 

Esto dynamo alimcutaudo li'im- 
paras directamente requcnni 33 
cabal os, 1 pnni o boras un total 
do 210 caballos. Aceptando como 
en oi caso antenor que cada ca- 
ballo necesito 4 libras do carbon, 
losultaril un consiimo diario do 840 
bbras, 0 sean 252,000 libias en 300 
las, 0 126 toneladas anualos, que 

. 667 00 

Gasto anual total § 867, 0, incltt. 

« el costo del dynamo nose 
ilegaria smo a. 

ollimo^Lfcosto de bace! 
so toma fin M sisteina de baterias. Si 

ilega a la suma de § 12,975 para la instalacion. 

contra $ 3,000 quo importaria nuestro sistema 
dirooto. IHo consoguido esplicar a Ud, clara- 
monto el.problomal 

"Esos son los individuos quo proclaman en 
pomposas circularos quo puedon iluminar moli- 
nos i otros establccimieutos industrialcs con so¬ 
lo instalar en olios un pequeilo dynamo que fun- 
cione ocho boras, i almacenando su electricidad 
desarrollada, evitando do esta manera el costo 
do una dispondiosa instalacion quo alimontaso 
directamente las luces. Probablomonto esos in¬ 
dividuos oljjotarau que ya pongo mui subido 
precio a las batorias; consentiriln para probarlo 
on vender esas baterias por muebo iiidnos; i 
no serin raro quo hicieran lo que en Inglaterra 
se bizo con la blmpara do Lano-Fox, quo era 
vendida a las eompaflias subsidiarias en gran- 
des cantidadcs a razon de 6 cbolines, midn- 
tras quo su costo do fabricacion ora do 12 che- 

Agregamos a la'opinion del sefior Edi¬ 
son, que por algunos se podrA consi- 
derar parcial en este caso, la del 
eminente electricista Gordon, poco 
entusiasta, como buen ingles, de lo 
que se hace en la novel America (1). 

PAj. 189. OapItulo XVI. El almacena- 


"Los I’esultados obtenidos- en el almacena- 
miento de los gases en gasdmetvos, (ul-1ior, ban 
snjorido a miichos inventores la idea de poder 
almaccnar la electricidad, o mas blen, la enerjfa 
oldctrica de una maneva somejante. 

"La linica manera bajo la cual podria ser al- 
macenada la electricidad directamente, soria 

- 27 — 

aislando dos conductores i cargilndolos respec- 
tivamente positiva i negativaraonte. Ponidndo- 
los en segiiida en coneccion, por medio de un 
niambro conductor, os evidente quo so establo- 
ceria una corriento al travos de diclio alambre, 
comente quo durarin hasta que las prosiones 
so igualaran. Para aprovechar la corriento en 
la iluminacion, no liabria sin6 intorcalar en el 
circuito una Mmpara. 

“Por supuesto quo el mdtodo es impractica¬ 
ble a causa de la dimension enorme quo debe- 
riantener los conductores, para que pudiOran 
■ almacenar una cargaque pudiesoser apreciablo 
aunque por cortfsimo tiempo. 

"Los dos conductores deberian estar dispues- 
tos coino los do un coiidensador o botolla de 
Leyde; forma bajo la cual se puede almace¬ 
nar mayor cantidad de electrieidad, pero no tal 
que pueda prestarso a uses prActicos. 

"Vidndoso, por lo tanto, que el almacena- 
mientode la corriento eMctrica es impractica¬ 
ble, las invostigacionos so encaminaron lidcia 
otros mdtodos do almacenamiento do una onor- 
jla potencial, bajo una forma que permitiora 
convertirla en enerjia eldctrica en el memento 

"Esta enerjia potencial podria ser jonerada 
do distmtas maneras. i la enerjia gastada para 
producirla podria sor o una enerjia eldctrica o 

una enerjia de cualqulera otra especie. ' 

"Por ejemplo, la enerjia potencial quo se 
tratara do almacenar para aprovecharla bn,jo da 
forma de enerjia eldctrica, podria ser la enerjia 
qulmica latonto en el zinc i on el Acido do una 
baterla voltaica ordinaria; o podria ser la oner- 
jia mocAnica i qulmica respoctivamento del va^ 
por listo bajo presion on un caldcro i del 
carbon listo para ser arrojado dentro de la bor- 

"Si se quisiora producir un a enerjia potencial 
para almaconarlai por medio do una enerjia 
eldctrica, podrlamos emplear una corriento eldc- 
trica que accionando sobre un motor- biciera 
quo dste comprimiera aire o elovase agua basta 
iorta altur a; do tal manera que el aire o el 
a"ua pudieran a su voz obrar sobre un dynamo; 
o'bion SO podria emplear la corriento en produ¬ 
cir una carga qulmica en una batorla secun¬ 

batekIas secundarias. 

"El sefior Plantd ba en contrado que si se co- 
locan dos.bojas de plomo convenientemento pre- 
paradas en una disolucion do Acido sulfdrico di- 
liiido i so conectan respectivamente con los dos 
polos de undynano. so produce un efecto quimico 
en ellas tal que se comportan a su vcz como una 
baterla - voltnica, produciendo una cantidad. de 
enerjia eldctrica quo vieno a ser una considera- 

ble fracciou cle la ooiTionto total del dynamo que 
so empled para oavgarlas. 

"Siendo angorroso el mdtodo onqilcndo para 
preparar ol plomo, ol seflor Faiire inventd turn 
baterla coinpuosta do simples planclias do i)lo- 
ino cubiortas do minio o dxido rojo do plomo. 
Esto iiivento produjo on 1880 gran cxitacion 
on Inglaterra a causa do un suolto quo pudo 
loorso en ol Tijies, on 61 cual so aminciaba quo 
so liabia llovado do Paris a L6ndros, en uiia 
peqiiofla maletita, 1.000,000 do pie-libras do 
enorjia oldctrica. 

“Ei tal millon paroco ser una onorme canti- 
dad; pero para formarnos una idea c.xacta do sii 
inagnitud, doboinos liaccr notar quo su cquiva- 
lento on unidades comorcialos, i al precio mdxi- 
mo autorizado por la Ciimarii do comercio del 
distritodo San James, vale “two-penco half 
penny” (poeo mas do cinco centavo.s.) 

“En estos I’lltimos tiompos so ban patentado 
un inmenso m'lmero do modilicaciones en las 
batei-ias secunclarias; pero liasta aliom no homos 
podido ver una sola batorla secundaria quo 
funciono con mediano dxito. Ann reeientemen- 
te nargadas, no dovuelvon un 75% do la enorjia 
que so empled para cargarlas. ■ • • 

“En sogundo lugar, ostas baterlas no conser- 
van su carga. Ho podido observar quo si so 
carga una batorla i so guarda duranto una so- 
mniia, su rendimiento disminuyo considemble- 

— 20 - 

monte. Estas perdidas so debon a accionos 
quimicas locales, quo tionen lugar en el interior 
. do las baterias. 

“En torcor lugar, las baterlas seoundarias 
so destruyen rdpidamente siendo necesario ro- 
novar el plomo al cabo do pocos mesos. 

"En cuarto lugar, el costo primero do insta- 
lacion por cada unidad do eiierjia eldctrica quo 
pueden almacenar (bnjo la forma do enorjia 
qulmica) os mui subido. 

Ho hai duda que los intereses i depreciacipn 
en una Instalacioii do baterlas seoundarias con 
poder suheiente para ijroducir una iluminacion 
cldctricii, son con muclio mas subidos quo los 
intereses i depreciacion correspondientes a una 
doble iustalaciuu do inotores, calderos i dyna¬ 

“Cuanto mas ostudiemos la cuestion del al- 
macenamionto do la enorjia oldctrica, tanto 
mas nos convenceremos do quo la mejor forma 
do onerjia potencial alniaccnada estil en la 
eneijia potoncinl del carbon do piedra i va¬ 
por comprimido; i que ol mejor aparato para 
efectuar ol dicho alraacenajo os uii buon calde- 
ro listo para actual- sobro un motor i un dina- 
1110 . 

“La onerjia potencial contenlda on una ba- 
teria, rdpidamente desapareco. Con los caldo- 
ros no sucedo.lo mismo. Los inotores son com- 

pavativamonto bavatos i mui durables; las 
baterlas sou mui cavas i no duran. 

“El duioo aparato do almacenamlonto digno 
de llamarso as! es un s61ido caldero lleno do 
vapor con una buoiia bornilla i on conocciou 
con un motor i uii dynamo, niantenidos caldea- 
do el uno i bion acoitados los otros para po- 
nerlos on movimiento on el momento requo- 



Chile, Peru y Bolivia 

loe—OA-Iii-Ei oooh:iia.wb— loe 

XiUK Electrica de Edison 





Luz Electrica de Edison 



El sistcma Edison do idumbrado ck'cti'ioo por eaii- 
doiioia os tan bion oonooido on osta costa, quo ciial- 
quioni dcsci-ipcion scn'a snporlliia. La osnencncia 
do todos los quo lian usado osta luz os, quo no sola- 
inento os la mas Segura, la mas llermom, la mas 

Sara"/ "'»« 

Maquinas, Dinamo-Electuioas, del sistoma Edi- 
son, son labnciums en los siguiciitcs tiiniiinos: 

Pai-a 25 liimpams do 1(! vclas o -lO do 10 volas. 

. (Jomo tnmbion, indqiiimis dinnmos combimidas do 
Ibiito dndiir y luilquiiiiis vorticalos a vapor paya ol 
alumbrado do biiquos. Estaa nidquinas son iiiui ofi- 
caces y ociipan niui poco ospaoio. 

Todos ostos dinnmos. dan unn corrionto do hajtt 
tendon o fuorzn oldotromotriz, con porfocta soguri- 
dnd para las vidas y piopicdndcs. , 

Las mdquinns, nlanibros o ofcctos puodon sor to¬ 
rnados con la inano dcsnuda sin viesgo ningnno. 
Tambien estnn provistos con rogiiladorcs autoinnti- 
cos, por lo cual la cantidad de corrionto siiininistrada , 
cs siempro lo iustamento uecesario para quo las lani- 
pnras scan consumidns a la fuorza normal do Id 
vela. ' 1 1 

Estas miiquinns son cspocialmcnto adoptadas pniyi 
alumbrar camnjmrticularee. liademlue, molinoii,fa- 
brkas, buqnen, edifidoepiiblieon, cemcerian, deetilu- 
derias, miuan, etc. 


Por oste sistema una corriento do electricidnd fija 
y continua os suministrado a toda las ensas. casas do 
nogocios 0 fiibricas do un pueblo o ciudnd, cuya cor¬ 
riento puodo ser utilizada on la produccion dp Luz, 

Galor, o Euerza Motriz. 

' Mas do tneinta do las Estacionos Contralos de Edi- - 
son ostiln aotualmonto funoionando on vnrias pnrtos 
dol mundo, y niuohas hai on construcoion. Esta Gom-- 
pani'a estii lista para instnlnr tales Estacionos on 
Ohilo, Peru y Bolivia, suininistrando y montando 
todo ol matorial. Donde hai fuorza liidraulica, ostas 
Estacionos puedon sor cstablocidns a luui poco costo, 
y puodon suministi'ar corriento oldctrica para alum- 
brndo y fuorza a preoio oxcosivamonte bajos. 

Elbctrolahuas y todos los litilos para la luz 
do Edison do todns olases. 

Lilmparas de 32, 50 y 100 veins cada una puodon 
sor usados nl mismo tiompo quo los do 10 o 1(1 veins- 
on lugares dondo so desoa una luz concontrada. 

Prosupuostos para toda clnso de trabajo soriin 
dado con placer a los quo lo soliciton. Es necosnrio 
dar sioniprd ol miinoro y la clnso do luces quo so no- 
cositan, y para qu<i uso, un disono dol local quo so 
va alumbrar, con las dimonsioncs y alturas dol toolio, 
y los pormonores de la clasp y cantidad do fuorza 
motriz quo so puodo disponor paia fuiicionar ol 


Santiago. Estacion Central. 2500 lamps. 

Los Anjoles ,, ,, .. 200 ,, 

Santiago, Sra. do Cousifio, casa quinta. 300 ,, 

Vinn dol JInr, Gran Hotel. 22S Wiiips. 

Simtingo, Sr. V. Eolirmvren Viiloro, ciisa 100 ,, 

,, Bon.Velasco,molinoyciisn (iO ,, 

Molino Santiago. (iO ,, 

,, San. Ciii'los. (iO ,, 

,1 li'abrica. do Lana.... at) ,, 

Giancroa ,, Velasco, niolinoy casa_ (iO ,, 

Oindoio.s ,, Enrique Lain!. (iO ,, 

Bullies, iiiolmo Biilnos... liO ,, 

I’alca, Si. Luis 'Williains, Alaiiibiqiio. .IO ,, 
Valdivia, Amvadtorlinos., Cervecon'a (iO ,, 

iiiiillota, Eiibrica do Papol. .OO ,, 

Santiago, Uiiivcrsidad do Chile. 2.0 ,, 

Nota.— El sisteina do Edison do aliimbrar por la 


Estanios proparados para suininisti .u niiiqiiinas 
onseros para el aliiinbrndo do aroo, dondc el so pi 
dll nocositar. Jlilquinas desdo 2 a 20 liiinpar 
cada una, do 1200 o 2000 volas do luoraa. Est 
liimparas son iidaptadas para aluinbrar calles, plazi 
o cualquior local grando y desciibiorto. Estae inaqi 
nas son vondidas a procios ninclio mas bajo quo 
podido por otros fabricantes. Mandad por pormon 
ros y presupuestos, dando todos los porinonorc 
coino iirriba indicado. 


mmUl de vaiwr, mxcilkz y mltdez 

y c'lil-loros a vapor mexjdofxihh 
ok y AVilcox esU dojando inui 
mas on todas inirlos del inuiido. 
lor costo, coiisiiiiion monos com-- 
lonto soguro, y do la mas apro- 
Nosotros suministramos estos oal- 
tainafio quo so desoo. 


isticos do la Compafiia Consoli- 
son mill suporiores a los instru- 
ara distanoias cortas, media logua 
imontos sou lujosamonto hoohos, 


Los 0 (!lobro motores do Gas, “Otto” son n 
dos para mover los dinamos para la produoo 
luz oldctriea y fuerza motriz. Como ol gas p 
mas oalor quo luz, os mas oooiuiuiico usar lu 
ti’ica produoida por un motor do gas, quo usa 
para alumbriulo. 

Los motores do Gas no neeesitan ningun 1 
oompetonto para manojarlos, y on eiudados g 
su.uso so esta liaoicndo mui comun. 

Nosotros suministramos motores do gas, s 
“Otto” bnsta iiO caballos do fiiorza, y toneme 
fios ospeeialos adaptablos para el alumbrado old 


Edison Phonoplex System 

Thu c!ci® P'’*"*!'* 'material relating to Edison's phonoplex system. 

If^ of railway telegraphy devised by Edison in the 1880s combined features 
telephone. Related material can be found in D-85-046 and D- 
ofette^Mk Serlel)^**^ Letterbooks, LM-012 and LM-013 

The following item has been filmed; 
Telegraphy" (ca. 1886). 

"Edison Phonoplex System of 


A. 0. Tate, Ele 




Saves the cost of erection of new lines. 


Phonoplex circuits cannot be left open. 


Circuits may be arranged to suit almost every require¬ 
ment and combinations formed which cannot be effected 
by means of any other known system of Telegraphy. 


The Instruments are easily controlled by ordinary 


We send with this issue of the Phonoplex Pamphlet 
copies of letters we have received from a few of our 
licensees, which show that all onr claims for the System 
have been fully proved by practical experience. 

Address all corre.spondence to 

Edison Phonoplex System of Telegraphy, 



moots a roquiroment that has long been manifest in tolo- , 
graphic oirolos. Tho ordinary duplexing of a wire, which in¬ 
creases facilities between terminal points only, has been 
largely applied, but until Mr. Thomas A. Edison devised this 
now method of transmission no means were nvailablo by which 
tho capacity of intermediate offices on a single Morse circuit 
could bo increased. Through tho use of tho Phonoplex system 
extra circuits are provided, by means of which more than 
double tho amount of service may bo derived from a single 
wire than is nt present obtained; while its extreme simphoity 
of detail end iidjustment places it within the easy conh'ol of 
ordinary operators. 


Tho principle upon which tho system is operated is iuduo- 
tion. Tho instruments employed for signalling respond only 
to induced currents thrown upon tho lino by transmitting de¬ 
vices, which ouiTents iutorforo in no way with Morse instru¬ 
ments in the same oirouit, being made to pass around them 
through condensers, while Morse waves in turn have no per¬ 
ceptible effect upon the Phonoplex apparatus; thus, two or 
more independent circuits may bo provided on a single wire, 
as will be more fully explained hereafter. 


This system of telegraphy can bo operated upon eirouits *4 
OROMtUmg ono hundred miles, or thereabouts. 

All or any desired number of intermediate offiees may bo 
doubled in their capacity, or communication can bo established 

“Wo have In. some oosos boon ablo to work tho phono- 
" plox whon tho lino wo8 Intorruptod so os to bo usoloss 
“on tho Morso sido." LATTIO, Supt. Tologroph, 

Lohlgh Valley R. R. Co. 

between terminal points only, regardless of whether such 
points are intermediate offices on a lilorse wire, or Morse 
terminal stations. In short, between such offices as are 
equipped with the Phonoplex, an extra circuit is provided, the 
same as though an additional -wire had been strung. 


•The delays which are attendant upon the transmission of 
business over railway wires, on account of the more important 
work of train dispatching, may be avoided by providing 
Phonoplex circuits as outlets to relieve the Morse line. 

On roads which employ only one wire, another great ad¬ 
vantage that will be more fully explained later on, lies in the 
fact that Phonoplex circuits can never be left open, neither 
through their own instruments nor those of the Morse'line. 
The opening of a Morse key in the same circuit has no effect 
upon the phonoplex system, the latter remains intact so long 
as the wire is not broken.. Thus a fruitful source of delay 
and ofttimes serious interruption of the roadway itself is pro¬ 
vided against by tbis system. 


The Phonoplex System is especially adapted to the require¬ 
ments of way wires, the conditions on which, regarding delay 
tlttough overcrowding and the opening of keys, being identical 
with those mentioned in connection with railway lines. 

Many of these wires are strung between a number of impor¬ 
tant points, tapping in their course offices of loss importance, 
and the Phonoplex, which permits the inclusion or exclusion 
of any or all intermediate stations, may be operated either 
wholly or partially ns a through circuit, with the object of re¬ 
lieving the pressure at certain points only, or, whore necessary, 
doubling the capacity of the whole line. 


On wires exceeding one hundred miles in length, phonoplex 
circuits may be added, the first starting at the initial office and 

doubling the capacity to a distance of one hundred miles be¬ 
yond, including or excluding intermediate stations; the second 
commencing where the first ends and continuing one hundred 
miles further, and the third and fourth follomug in turn under 
like conditions. Tims any number of extra circuits may be 
added to a long who for the purpose of absorbing local busi¬ 
ness, which as a rule circulates TOthin a radius not exceeding 
one hundred miles of its source. In addition to this Phonoplex 
^ circuits may bo established between two or more offices on a 
wire, whether they bo iutormodiato or terminal, without neces¬ 
sarily equipping any other portion of the same system. 


The Phonoplex System can bo applied to duplex or quad- 
ruplex wires and operated from the same terminals, or 
intermediate offices may bo out in and permitted to work, 
as on an ordinary Morse oirouit, rvithout interfering mth 
the operation of duplex or quadruplox instruments at either 
end. This enables a long stretch of wire to be utilized, wliioh 
at present serves only two separate points. 


In wet or heavy weather, when Morse wires are rendered 
almost unworkable through the presence of heavy escapes, 
the Phonoplex circuits on the'same lines are not in the 
least impaired. Instances have been frequent where Morse 
signals could be transmitted only half the length of d wire, 
owing to the cause mentioned, while the Phonoplex' system 
was operated the whole distance the same as under the most 
favorable conditions. 


The apparatus for the equipment of an office consists of a 
key, transmitter, magnetic coil; small resistance box and the 
phone—which lost responds to incoming signals; two conden¬ 
sers, two cells of gravity battery and four of eleotropoin, and 
the whole is orranged to oooupy no more space than ordinary 
Morse instruments. 

“The advantages olalmod for the system have boon 
“oloorly domonstratod on our linos bv. praotlool oxpb- 

rlonoo. p DWIOHT, Oonl. Managor, 

Croat N. W. Tol. Co., Toronto. 

this Uea in the fact that an open oirouit eleotro-poin battery .of 
low resistance is employed, which it is desirable to nse only 
when occasion requires the transmission of signals, and also 

The above diagram shows all the instruments in place. AH 
Morse keys and relays within the limits of a phonoplex oirouit 
are bridged, as represented, by a condenser through which pass 

• 10 ■ ' ■ 

the induced currents that operate the phones, It 17111 bo 
readily seen that the main line, which passes through the mag- 
netio coil and through the phono, is never broken, the former 
being charged and discharged by means of an extra circuit through its key and the points of the transmitter. 

This explains our previous statement'to the effect that a 
phonoplex circuit remains intact so long as there is no actual 
breakage of the wires to which it is attached. 




The following diagrams will illustrate the manner in which 
extra circuits may be derived on Morse lines. 


DiAonAM No. 1. 




The black lino represents the established Morse circuit. 

• represents the offices through which it passes. 

The dotted line represents the extra phonoplex circuit. 

The above diagram shows all offices equipped and doubled 
in their capacity. 

In order to understand thoroughly the advantage derived 
from these extra circuits, as shown in the above and following 
diagrams, it is only necessary to boar in mind the foot thot a 
phonoplex circuit provides facilities between such points as 
ore included in it, the same,ns though an additionol wire had 
been strung without reference to the line to which it is attached. 

“Wo oro working both (Morso and Phonoplex) on tho 
“ oiroult In question, with groat advantage to tho telegraph 
“ business of the Company.” 

J. W. LATTIC, Supt. Telegraph, 

Lehigh Valley R..R, Co. 


The tot is phonoploxed to half its length, ond the induced' ' 
currents are then thrown into the second wire and pass throuch 
a partial number of its stations. In this way communication 
IS established between a number of offlcos on each itoo which 
otherwise are unable to work direct ivith each other. 

DiAonAM No. 8. 

Diagram No. 8 represents a Morse duplex circuit, the wire 
passing intermediate olHces. 

The illustration shows how .communication may ho estab- 
lished between those intermediate stations, or any of them by 
wk^^ “ phonoplex eii'ouit annexed to the duplex 

Diaoiiam No. 9. 

Diagi-am No. 9 in the-same mannerillusti'ates the phonoplex 
system applied to a quadruplex line for the purpose of utiliz- 
ing it ns a way wire. 

. It will be readily seen from these few illustrations that the 
phonoplex system is capable of a great variety of convenient 
combinations, which it would be impossible to effect by moans 
of any other known system-of telegraphy. 


The cost of maintenance is veiy slight. The only actual out¬ 
lay requu-ed is for the provision of battery material. Of course 
this expenditure varies with the amount of work done but as 
suming the phonoplex transmitter to be in constant operation 
for twelve hours during each of the thirty days, the cost of re- 
liattory TviU not exceed one doUar and fifty cents 
(Sl.EO) per month. ^ 



Instruments maybe procured direct from the authorized 
manufacturers, who have furnished the following quotations: 


Magnetic Coil. 




Coil Condenser. 

Bridge Condenser. 

Battery (per cell complete). 





sm /«<?<=’ 

. 1.75 

Edison Speaking Phonograph Company 

This folder contains printed material issued by, or relating to, the Edison 
Speaking Phonograph Company, which was organized in 1878. 

The following items have been filmed: 

1. "Instructions for the Management and Operation of Edison's Speaking 
Phonograph" (1878) 

2. "Edison's Speaking Phonograph. Instructions for Operating Experimental 
Apparatus" (ca. 1878) 

3. "Edison's Parlor Speaking Phonograph. Instructions." (ca. 1878) 

4. Miscellaneous circulars and other items relating to the exhibition of Edison 
phonographs(1878, 1881?) 

Edison'S Speaking Phonograph. 


Operating Experimental Apparatus. 


Do not move the cylinder while the arm is in position until the conditions aro right for the 
proper notion of the embossing point upon the foil. Do not look the arm in position unless the foil 
is upon the cylinder. 

Always withdraw the arm to run the cylinder back to the starting point. 

In operating the machine always begin from i to * inch from the edge of the foil; if too 
close, or off the edge, the point is apt to catch and tear the foil, or wedge itself sidewise and out of 
center. Do not set the point so deep as to tear the foil. 

Handle the point with care to prevent its becoming detached from the rubber cushion, or the 
cushion from the diaphragm. 


Gum one end to the depth of one-fourth inch with the gum furnished (shoilac varnish), hold 
the gummed end between the thumb aud forefinger of the left-hand at the Ijaek of the cylinder, 
with the gummed side toward the cylinder, slip the ungummed end under the cylinder, catching it 
between tbe thumb and forefinger of the right-band and drawing it firmly up and around the 
cylinder; Tlien draw the gummed end forward, overlapping tiio ungummed end and pressing the 
two edges firmly together. Great eare must be taken to get the foil on firmly around the cylinder 
and without creasing. 

To adjust and center the embossing point run the cylinder to the right until the embossing 
point is near the left-hand edge, but not beyond it; then move the arm forward gently until.the 
point rests upon the foil with suflleient pressure to leave a mark; then take the small iron centering- 
pin and press it on the mark forcing the foil into the groove of the cylinder, and obseiwe if the 
embossed mark is e.\actly in the centre of the groove—if not, adjust tbe point to the right or loft, ' 
as the ease may be, by means of the small adjustable-screws at tbe base of the support carrying the ' 
mouth-piece. When thus adjusted to the center of the groove, the embossing point may be sot to 
make any depth of groove desirable by means of the thumb-screw through the end of the aim. 
Usually the best depth of a groove is ^ of an inch j that is to say, just sufficient to keep the point 
always making a groove in the foil, no matter how groat the amplitude of the vibrations of the plate. 


The cylinder should bo rotated at the same rate, when the words are being reproduced, ns 
when they aro spoken into the apparatus. Uniformity of speed is very essential, especially in 
producing a musical tone. Tlio beet rate is about 80 revolutions per ininuto. • ^ 


To speak into the instrument with the best effect, the lins should be belrt 
practice will show how to obtain the best effects. " ® 


To got a much greater volume of sound place a paper or metal funnel nr I,. .1 

Iho record may be reproduced a number of times. 


: .f to i“ “'2;•: : 

prefer to supply thoin and will keep them constantly on hand. ^ 


r-n:* “ 1- - - 

lioiame Sra or din, ngniiiet tl.o onsliion until tlio wnu .etu ’ 


Hold the nose when speaking and got a nasal twang, 
etc etflike a ho-r, etc 

2s:irz,:“ -■•o.....f..n.i,.‘pw 

I not ot!!-n"neloek-work sufficient uniformity of speed 
J not obtainable to produce properly a sustained note. ^ ^ 


E. H. JOHNSON, Om’l Agent. 

P. O. Box 5,629, Now York. 


is intended for use in the |MrIor or drawing room, and will liold tco to a 
■'eplnced at any/utnre time, thereby reproducing the same soun 
U ^^ed'^"!* have a number now 

:d and Illustrated Catalogue will he published ilj four jarts, any or all of which will be mailed on application 
smatical Instruments, i6o pages. || Part 3d—Magic Lanterns and Slides, 112 Pages. 

»^I nstrument _ 8, 144 pages. - l.":.! _ J_Part_4th—Physical Instruments, 188 Pages. . 

For Sail by 


Mathematical, Optical and Philosophical Instrument Makers, 

I Chestnut Street, Phildaelphie 


.^pe’aking f^i\ono^x‘h,j)l\, 



Gen*l Uanagor. 


After the Concert at Irving Hall, on Monday 
Evening, June 3, at 10 p.m., a press reception 
will be given to Mr. THOMAS A. EDISON. 

You are respectfully invited to be our guest 
on that occasion. 

Mr. Edison will exhibit his Phonograph, explain 
his latest invention for measuring the heat of 
distant stars, etc. 

Supper at 11 p.m. 

This Card of Invitation will admit the bearer. 

'“'■ Saturday M^iS2^5iie,2adl^l8W* ^ 

;■' 7 ^ 5 -^.'’,V 

1 . 0EGAN-«Weddm'girarera‘>O‘//"--’ .y'-y"" Hendehtohn 

.j :: /■--> Ttfi'a-HvJTAS- 

2. SONG -» Lot,mo Droam'a^in,” .1; i • f ^ .4^ ^ ^ ■. &iaiw« I 

c- - . ■ilme.'.ii^LLMCO'^h JU I.' 

3. ORGAN—Air Varied; BoiodiolV-BallSd'; “By'WSdd Sd^rWirS/’ ■' 

, ,.^t 4 f.i/,i . .>. '"xiforgan 

4. SONG—“Slio Wando^^wiw^OiMountoin^Syo,” • >/'. ... Ohtf ■ 

''B^ZLEfcOLEy ■ ' , ., 

6'. Explana’toryRomarkebnihoXelepnoneondpiabnosSapll'^ 

. ■ .Mr 'Ejs. J<hm01ir. „ 

■; .v...L^ '... vj ;v5iu.t£.';', ,'a .:^rt .: 

6. Practical Domonstration of the EdlSOn Mnsloal Teleplyne 

and Edison Speaklng'an^Musloal Fhondj^fri^li; ’ 

With Rooitationa, etc., etc., hy|;._^,^ / . JOHNSON 

Soprano Solos, by . • • / • ^ Hme.'BELEE COLE 

Tonor Solos, by • V, .;3t 4fric4.cJR3.«O^Ai . 

Duets, jyjiiqtling, oto.v ote.’ • , . . 


Saturday Evening, June 2Sd, 1878. 

l. ORGAN—Oyorturo, “Fidolio,” . . . • . . Beethovi 

Hr. a. W. HOBOBl^. 

S. lUustratod Lecture on Sound-Motlon.- 

8. Explanatory Remarks on the Telephone and Phono^aph. 

7. Praotical Domonstration of the Edison BEusioal Telephone 
and Edison Speahlngr “nd Uus^oal Phonograph. 

With Reoitations, eto., etc., by . . Ur. E. H. JOHNSON 

SopranoSolos, by . ... . . . Ume. BELLE COLE 



Jil Sr. Dy. E. 0. WISE y el F. E. BEAKDSLEE, 

pi'oduou An un discnrso cientlflco y pniobaa prdoticaa aobre 




" HI' 

(6 muqumii quo Imblii.) 

. El invonto imi8 siibhino do osto eiglo; iiiiiv miiqiimn quo roiJroduco 
'palabras; cl canto, cl sonido do lii'cornetii, etc. Ouandb unn voz el 
aonido cata dopositado on olla, oato piiedo vopotii-so im numoro ilimita- 
dp do voces y contonares do anoa mas adolauto. 


• Uno do los adolantos mils ndmmiblcsdol tiompomodorno; So pno- 
,dp trasn^ifcii .)ncdiunio cstiirmAqiiina la paliibm qno so babla diB- 
tancia dp^uOO inillns; olla.ooapa-puos ol -liigar dol Tolfignifo y puedo 
usarso por cualquiora persona sin propanicion algumuv 

Esto invonto, •yordndornmonto milagroso/’bnoo oi'r A 1 .tb porsonas 
las palabraa quo 80:linn.hablado, ,A la.mdsKja- qno so: ha tooado on dual- 
qmpr un.ouarto qup diBto 80 m)llns.vOimndo csto instrumont'o 
so nsa no liny socroto posiblo, puos ol rnido mas insiguifloanto on nn 
Guarto so trasmito inmodiatamcnto,' 

iJntrada por persona, UN PESO. 
Nffios de menos de 12 ^os, 60 centavos 

So vondpn lqs lolotos on la Ahmebia'AMUB ioAVA' de los Sros AVuxol 
.y Do Grossj.lT onllo doElatorosnfimoro^e, : - , -■ , ; 



Musio sent by telegruph over the wires, and distinctly beard by 
the entire audionco at oneo. 

■ni© Bell M“©l©r>23-oa3.© 

will bo exhibited winch convoys sounds for hundreds of miles dis¬ 
tant Talking, Singing, AVliispering, Slusio, ic., distinetly audible. 
Two persons can talh and hear each other 100 miles 
apart. Words sent hij Uuhtnlmj over the tvlres. 

Electrical Essih.i'biticn, 


Tie Soience of Electricity aail its nses Explaliiei, 

livery one many have a ehanee to test the Jiatterles 
and converse throuyh the wonderful Telephone. 


Oll^clxrexi, (under 12) •.15C- 


' Commoncellt (&von o’clock. 

Pres. Churchy 'iVew Froyidencey 

Tmawms&svms ' Mqv* M. 

For the Benefit of tho Ohnroh. 

* fir If Btomy, next KTening. 


No. 6 East 23rd Street. 

The Phonograph 7’rv,3, stuas, Zanghs, imisties, Flays Co,-net Solos, and reprod^'(a all 
manner and character of sounds ■with a fidelity of utterance and tone absolutely startling; U 
embodies all the improvements thus far- made by the inventor; demonstrating beyond cavil 
that a TALKING MACHINE is now an accomplished fact. 

This .marvelously delicate apparatus for making audible sounds which at., othertvise in¬ 
audible, and in connection with the Telephone, transmitting them to a distance, is exhibited 
in a practical manner and Mr. Edison’s claim of priority of discovery clearly set forth and 

Mr G.,Schirmer, Music (Publisher &• itealer, 
jot (Broadway, has just published for the author, the latest 
novelty {herewith find specimen copy) entitled :— 

“Tie Song Of Mister Plejograjl.” 

tvhich has been sung with great succss at the 'Phonographic 
Exhibitions in Mew-York 

It is just long enough to be sung into one sheet of 
tin-foil and is admirably reproduced. 

.A discount of fifty per cent (50X) willbeallmoed 
■ to 'Phonograph Exhibitors on the retail price, which is 
twenty-five cents {25 cts.) per copy. 

Orders ivillbe filled 0 . 0 . D. unless accompanied 
by draft, or postal money order. 

(Do not enclose any ■>noney in letters. 

Send all orders to 

a. somiiMEii, 

Music Publisher and Dealer, 


New York, City. 

This is a good song and quite effective. 

Its Introduction will be an excellent feature. 

James Redpath, 
General Manager. 

: INTIOOlLalLi THE ^-AlklLiOj^i/t 


KOHLBE’S at^traman '? 

■w A.X'Wf'O Eizsjs' 


■F’TJ.-lVIarls.©* (Street-VZl 


Admission 25 cents. Children under. 10, 15 cent^ 

School Children’s Matinee every Saturday Atternoon at 2—Admittance, j 




THE NEW ZEALAND TIGER SEAL, caught in Now Zealand in 18 
This Scat atoppcd the Railway Cara, and wna captured by a Mr. Rosai 

1— THE Et. honorable W. E. GLADSTONE. 

Premier of Englani _ ^ 

2— ME. PARNELL, M. P- ’ , 


Secretary of the Irieh Land League. 

,0 great Irioh Patriot 




The renowned Free-thought Member for, Northampton, England. 


Euionie doMontilo ia a Spaniard by birth,, anya dwoen dod from'a,noble ho^ She 
waa aSdaome peiaom Bom Sth .May, 1886 1 married the Em, yor, Jutt^'SOth. 18«A 

ajsev soao© £)iK[iHSiM,mi.3 awn ajN^- 

Edison Telephone Exchanges 

This folder contains printed material relating to Edison telephone systems in 
San Francisco, California and in Dayton, Ohio. 

The following items have been filmeds 

1. "List of Subscribers ... San Francisco, August 16, 1879" 

2. "List of Subscribers ... San Francisco, October 15, 1879" 

3. "List of Subscribers ... [Dayton, Ohio] November 1, 1879" 

Speaking Carbon 


Central Office System. 

Hcbn Francisco, j^ugusi 16, 18.79. 


Names- preceded by stars are connected with the CENTRAL 
Office System, and any one of the subscribers can be switched 
into direct and perfectly private speaking communication with any 
otiicr subscriber, at a moment's notice, day or night. 

Telephones connected witli the Central System have been placed 
at the . 







American District Telegraph. 

Department for the Distributmi 


And Other Forms of Advertisements. 

This Company has carefully organized a Department for the delivery of 
Circulars, Pamphlets, etc., and offers its service to the public, confident that 



The service is performed under a carefully prepared system, by a force of 

ISO Uniformed and Disciplined Messengers. 

The city and suburbs are systematically subdivided by Districts, with offices at 
222 Sansome. 833 Sutter. 

9fii Mission. Kearny and Sutter. 

Caiifornia and Fillmore. Mission and Twentieth. 

Hayes and Laguna. Fourth and Biuxome. 

Poweil and Union. Butchertown. South S. F. 

Supervising officers will inspect the routes daily, to detect and prevent waste 
or improper distribution, and upon tlieir reports certificates may be issued to 
our patrons of tlie proper execution of tlie work entrnsted to our care. 

is too often the case where irresponsible and inexperienced persons are tem¬ 
porarily employed for this service. 

GEO. S. LADD, President. JNO. I. SABIN, Superintendent. 


List OF Subscribers. 

Asraiis & Carroll.. 



..3 and 5 Front. 

./Etna Iron Works. 

..717 Clay. 

.. 123 Kearny. 

..217, 2i9and 221 Fremont.' 

Alameda B. & L. Ass'n. ... 
Alameda B. & L. Ass’n. .. 
Alaska Commercial Co.. 

..Ch. C. Volberg, Pres’t... 

.. Moritz Friedrich, Sec’ry... 

..709 Market. 

..309 California. 

•Allen, C.R Coal ..aoBcaic 

Armstrong & Wright... 
Army Headquarters. 

.MTrs of Boots and Shoes. 


.. Presidio. 

. .67 and 69 Stevenson. 

.,105 Stockton. 

..1014 Pine. 

Ashton, Chas. 

Assessor’s Orrick. 

Ayer, Washington. 

Baker & Hamilton. 

. .City and County. 

.. Physician .. 

..Assessor’s Ofiicc. 

..120 Sutter. 

..New City Hall. 

.. 1622 Clay.. 

.New City Hall. 

..708 California. 

..7-19 Front 

Baldwin Hotel. 

Baldwin Pharmacy. 

Bancrort, a. L. & Co_ 

Bancs, Edward. 

Batcheldkr, R. N_.... 

Barron, Edward. 

.. Hardware. 

.Alex. MacAbec, Bus. Man’ 

^ Depot Quartermaster. 


. .Market and Powell. 

..721 Market. 

. .Mission Bay Warehouse. 

.Stockton and O’Farrcll. 

.426 California. 

..413 Hyde. 

1 ^ 

Barney, Gen’l B. G. 

Bastheim, J. 

Battery St. Bon’d Warkh’ 

Bay-City Market. 

Bay Soar & Candle Works 

Bay Sugar Refinery. 

lAYLY, Chas. A. 


..Geo. C. Bode & E. DanfortI 

.M. Gradwohl & Co. 

.Lavenson & Winter. 

.Hennan Mecse, President.. 

.2209 Jackson. 

.1509 Gough. 

.Battery and Filbert. 

. 1146 Market. 

.Battery and Union. 

[ ■ 

•All name* prefixed by star (') 

.Residence...1633 Mission. 

.Surveyor* Engineer....507 Montgomery. 









KEIL, F. C. 












WAKELEE, H. P. & C( 













All persons are warned against using the 
so called “Bell Telephone,”]or any other 
Telephone not prociiVed from this Company, 
as' recent patents arid re-issufes of patents 
have esta,blished the %hts of 6ur principals. 
Suits have already heeii. brought against a 
number of individual infringers on this coast, 
and all infringers will be sued as rapidl)'^ as 
discovered. ' i 

Gold and SxbcK ‘TEiiiGRAtH Co. 


- , -A.GKEJaST'TS. 

Speaking Carbon 
Te lepho ne. 


Central Office System. 

San Francisco, October IS, '1879. 

Any subscriber can be switched into direct and perfectly private’ 
speaking communication witli any other subscriber, at a moment's 
notice, day or night. 







Foi the accratnodation of the public. Any person applying at one of these offices can 
converse, by Telephone, with any of our subscribeni In the City, at the expense of as cts. for 
five minutes conversation. . ■ . • 

.Gold AND Stock Telegraph Co. 

: t , OF CALIFORNIA. •' 


5048—Wrn/.bli, W. T. 

33(j'-WKRNEK, Mrs. K . 

265''-Wkst Coast ToRniturk Co. 
365—West Coast IfuRsiTURE Co . 
30—WiwTERN Union Tei.. Co... 

214—Wrtiieriiee, CnA.s.' L. 

2021—Wiiar'teniiv, James. 

■ 97’-WmTE, Cait. H 

sV & Go’s Cxi'RESS. 

iiV & Maksiiali. 

■;v & Webster. 

.. Paris Millinuiy'.. 

. .Satcsrooiii. 

■factory.Fourth and Uryant. 

.. Montyomery. 

• Matinyor..Occidenlnl Mold. 

. Kcsidcnce..408 Ellis. 

• hire I’ntrol.Stuvctisou. 

. Residence...174 Jc.ssie. 

.Ship Clmndler.Foiit of Second. 

.Residence.401 Hi^-ant. ^ 

Oakland, Alameda,Rrook* 1 , , , , 

lyn, Rerkeley, Tcmescal \ 3 ami S Commercial. 
.Iron and Coal iMerchnnt.s. .2 


5057_\ViNm:LL, il . 

':iO27-\ViNDS0 R Housk. 

8006—WlNTKRUAI.TKR, \V. 

5021—Worth, Sidney. 

332—Wooster, IIdiiiif.i.i. & Co.. 
i 84 »-Yates&Co. 

184—Yates ^ Co.. 


... I’liysician. 

... Physician. 

... Physician. 

I Transportation Co 

... Provision P.ickers... 
... Provision Packers .. 

... Residence. 

...Stock Ilrokers. 

.. .218 California. 
..First and Urannan. 
..420 California. 
..50S Market, 

. .2416 Washington. 

.Warsch.aiier Pros.905 Market. 

.Residence.1430 Tyler. 

.Physician.426 Sutter. 

. Residence.. • *2923 Sacramento. 

.Wholesale Provisions.317 and 319 Front. 

.Paint.sand Oils.113 Fronts 

L-11. Agt. Cal. .Silk MTgCo.sSs Market. 

Attorneys-at- J 

GREAT1 .'v UL.-VXniNG. 

HAGGIN, J. n . 

KXU.\, GKO. T..Votary Public. 

LAKE & .McKOON...... 

McALLIS'l'ERS & KERGIN...... ^.. 



Coal Dealer 


EBBETTS.’a. .V' 







iice, press the 'buflon four or five times slowly, 
er by your bell. If not answered promptly, re- 
1, take your Telephone from the switch and retain 
hraugh conversation. When your signal is an- 
outh mar the Transmitter, not into it, and always 
ir number assigned you on this list, nex^ the name 
wanted, for we must be able to announce party 
td- A strict observance of this rule'will avoid 

Hello,” “Good morning,” or “Good evening” 
Charlie Foster wants loo, or Thos Ewing.” ' 
finding party wanted the caller will be discon- 
nd we are not responsible for delays at this point, 
or three minutes, 1/ necessary. If then not an- 
one to switch and call again, remembering the bell 
1 Exchange when swileh is open. Always speak 

:e calls you, do not press answer. Simply 
switch and ask what is wanted, 
iversation, replace Telephone on switch and al- 
1 three times for disconnection. A neglect to noti- 

gaged. ® ’’ 


Edison Telephone Exchange 


C'AL\TX!/ii^,lX Oli^hTCJL, 

III A & G W 11 R Depot, cor First and Koowco . 

; Ainoncan .l•.xl)l•cs8 Go., Third near .lelVerson . 

.1 Alabaugh, Crumo k Co., cor Fourth* ,St. Glaii 
S ■“"[■"’■'■O”- Glliai'les, Third near Jefferson 

1 St. Clair 
and .Main . . 
ml Wyandotl. 


ior Kosidonco, 206 b Ludlow 

120 Parmoly M B Dry Goods, e Third st 

B38 P^r S-* Saaond at. 

338 m ‘^’‘y Building ... 

338 PJott, J D, Bosidonoo, 428 w Sooond’ 


Attorneys and Solicitors. 

Brown, OB, 170 Third St. 'j 

Boltin & Sliatick, cor Main and Second st.s, E.aker liuilding. I 

Bellville, W J & J J, No. 6 s Main st. 1; 

Bellville, W, McKemy, W U, Elliott, Judge H, all of 22 e Third. i- 

Gunckle & Rowe, n Main st. Winter’s building. j;; 

Humpreys, A, Jefferson st. Odd Fellows Temiile. t 

Iddings & Iddings, 34 n Main st. i 

Lowe, T 0, n e cor Jefferson and Third. | 

Monger Warren, cor Third and Jeff, Odd Fellows Temple, upstairs. I 

Nolan, M P, 28 e Third. | 

Peck & Ritchie, 34 e Third. |, 

Young & Young, cor Third and Jeff, Odd Fellows Temple, upstairs. I 

Young, Jas C, 30 nr Main st. I 

Architects, | 

Beaver, Leon, cor 5th and Main, Priiden’s Building. 

Peters & Burns, s Jefferson st, Clegg’s Building. 


Bauman, A L w Third st. 

Heathman, G AV, & Co, cor Second and St Clair. 

Wyatt, H & T, igfi e Second st. 

Banking Houses. 

Dayton Savings, 432 e 5 th st. 

Gebhart, Harman & Co. 3d nr Jefferson. 

Merchants National, 3d and Jefferson. 

Second National, 3d and Jefferson. 

Book Stores. 

Eickey, James, 28 n Main st. 

Bagging Factories. 

Sebhart, Josiah 8: Co, cor 2d and Front. 

Clothiers and Cloth Houses. 

Legler, Barlow & Co, dry goods, notions and cloth. Mam near 2d. 
Barlow Clothing House, 2d st near Mam. 

Charch, J S, Jefferson near post office. 

Eversole & Ries, 3d st bet Main and Jefferson. 

Owen, Pixley & Co, 3d st bet Mam and Jefferson. 

Schwartz, S C, Main st near market house. 

Huber & Lyons, Main st near market house. 

Confectionery, Fruit and News Depots. 

Anderton. Chas, c Third st. , „ 

Bradstreet & Sons, Commission House, 4th st near Jefferson. 

Gray, T H, Third st, near Main. 

Kiefaber Bros,.Third st near Jefferson. 

Mull & Underwood, Fifth st near Jackson. 

Wolf Bros, Third st near Mara. , , 

Wilson, Geo, P O News Depot, cor 4th and Jefferson. 

Freeman, AV D, agent Enquirer, Jefferson st, 2d floor, near AA U 
Telegraph Office. 

Zoll & Houser, Market st. 

Cox, John G, 4th st near Jefferson. 

Johnston, Sam, Main st between 3d and 4th. 

Contractors and Builders. 

Brown, S N & Co, s e cor 4th and St Clair. 

Beaver & Butt, St Clair bet 3d and 4th. 

Rouzer, John, AVyandott st. 

Pierce, J H & Co, cor AA'ayne and State. 

Commission and Brokers OfQces. 

Bates, AA' L, Journal Building. 

Cox, J C, Huston Building. 

Mott, F B, Huston Building. 

Todd, AA' D, 12 s Jefferson. 

Coffee and Spice Mills. 

Canby, E, 302 to 

Commercial Collectors and Insurance Agencies. 

Dayton Insurance Co, Huston Building. 

Dennis, G B & Co, Main bet 2d and 3d’ 

Firemans Insurance Co, JefTerson st bet 20 ana 3d. 

Ohio Insurance Co,. 3d nr Jefferson. 

Worman, C, Jefferson st nr Postoffice. 


German Reform Chureli Study, Rev AVm A Hale pastor, n Ludlow. 


Hubbard, L & H, Pruden Building, sth st. 

Tizzard, S B, Jefferson nr 5th. 

AVhiteside, A T, e 5th nr Brown. 

Zell, J L, fi e 5th st. 


Sichs"tl>n^cn "Ai'Joffarson. 

Boyer & McMaster, w SarTst ■"''' 

„„ Sd,0., a, 

Ca lahan, W P, e Third at. 


iinght & 


Powell Brothers, 14 n Main st 

WhS^’c^n^iaf lSres““'s\“"htff , ' 

„ ores, c sth bet Mam and Jcirerson. 

Dodds, James. „s Main s^ 

Schneider, C E, 35 s Main st 

Bretch ®Cn“ d sfnefr^^an ^O^ks. 

Buvinger, G wVe E, 3d sfnear' Can,. 

Hermann, M, 344 w 3d st ' ^ ‘ 

jjjib, a a s».?;fZ‘SiS‘' “*“■ 

Blau, M, on Canal near Third. ' 

olTice cor 5111 and 


Hardware and Iron. 

Rogers, Engle S: Co, n' Main st. 

Barnett, R & Co, Wayne st near 5th. 

Rohr, Geo P', Third st near Main. 

Gebliart, S & G, Third and St. Clair. 


Dickey House, cor fitli and T.ndlow. 

Phillips House, cor 3d and Main. 

House Furnishing Goods. 

Stewart & Conklin, Main nr ad. , 

Jewelers and Optieians. 

Best, W H & Co, cor M.ain and 3d. 

Knii'e and Kilo .Makers. 

Simmons, A A, D.ayton View Hydraulic. 

Clark & Co, e ad st near Canal.' 

Lumber Yards. 

Dickson, W B & Co, ist and Sears. 

Davis, Sam, sth and McDonough. 

Gebhart, Alex, Wayne st Crossing. 

Honk, M J, iVayne nr 3d. 

Peters, Win, Clinton nr 3d. 

Wight, C S: Son, Yard Water st 

Wight, C & Son, Branch w 3d st R R Crossing. 

Livery Stables. 

Cathcart, Jas, .TelTerson st opp Market House. 

Dempsey, Jas, 3d nr Wyandott 
Dornbusch, 5 th nr Wayne. ' 

McGowen, Peter, Main 5 of 5th. 

Messier, P P, 3d st nr Phillips House. 

McGowen & LaRite, 4th bet Main and Jefferson. 

White, AV B, 4th nr Jefferson. 


Bowden, J A & Co, ad nr St Clair. 

Mills and Milling Supplies. 

Gebhart, S & Sons, cor 3d and Front. 

Gebhart, J R & Son, cor 3d and Canal. 

AVeed <!s Co, Jefferson nr 3d. 

Telegraph and Express Oflloes. 

AV U Telegraph, Jefferson nr 3d. 

Minufaotarers of Cigars and Dealers in Tobaooo. 

Cotterill, Fenner & Co, ad nr Jefferson. 

Hannah Bros, 5th nr Brown. 

Powell, Chas L & Co, 5 e ad st 
AVolf, J P & Co, ist and Foundry. 

AVarman, C, 107 s Jefferson st 
AATollaston, J & Co, 3d nr Main. 



nr Commercial. 

Kenney, J 1 Mam nr 4th. . 

Williamson & Co, 5th nr Main. , 

T Meat Store's. 

Jacobs, Harry, 385 w id st. ' 

{rn^ «• 

Miller August, 918 s Wayne st. 

Olt, M, 22 Market st. 

rhresher & Co, Third st near St rinlr 
Tower Varnish Co, leeo e ist Chis Tn, 

Lowe Bros, Third ^t niar St Clair! 

Excelsior Oil Works, 326 e Third st ^ 


Mead, H E & Oo; .9 " Second st ^ 

KosTr's, r7: & So. f .9 e^l.ird st. 

HeS? W °Ffo^firS' implen^ents. 

' Sltry,yVl-c^o “Thbd 

. Klees, Jotcofad an'lfcan^.^ 

Conover fSLfvar?^^^^ 

Davis,-1. YardVh st R R CroLL/ 

Davis, I, Branch cor M.aple and Perry 
Jackson Coal Office, 3d st opp McSiuah 
Miiiphy, J A, Yard ist and Webster 
Moffet, MJ, 3dandDutoit. 

Murphy, J A, Branch Office Jeflerson st nr fleck,.l 

^aucf:,on, o J, iirdneh Mam st nr id. 

w?’ 3d and Kenton, 
sts^n 3d “fd Main st. 

C A, Yard Wayne st. 
»CB&Co adandClinton. 
Whitmore Bros, Water and Foundry. 
Whitmore, J D, Wayne st R R Crossing. 

Millinery and Notions. 

Babbitt, T S S: Co, wholesale, n Main st. 

Griffith Bros, wholesale, e 3d st. . 

Smith, Mulford & Co, wholesale, Pruden building, 5111 st. 
Hillman, C, retail. Temple of Fancy, 448 e stb st. 

Public Offices and Schools. 

County Clerk, Court House. 

City Clerk, City Buildings. 

City Hospital, Franklin nr Ludlow. 

City Infirmary, Brown st opp Union. 

Mayor’s Court, 6th st nr Tecumseh. 

Police Office, City Building. 

Water Works Office, City Buildings. 

Water Works Pumping House, Keowee st and Mad River. 
Station House, 0th st nr Tecumseh. . , , , 

Wood Measurer, Public Landing, Canal Basin bet 2d and 3d. 
Uayton Law Library, 3d st adjoining Superior Court. 
Superintendent Schools | uuddings. Main st.. 

Clerk Board of Education j / 

High School, cor Wilkinson and 4th. 

.Mormal School, HuiTman ave bet May and Centre. 

First District School, 2d st bet Madison and Sears. 

Second District School, Perry st bet ist and ad. 

Third District School, Ludlow st bet 6th and Franklin. 
Fourth District School, cor Brown and Hess. 

Fifth District School, 5th st bet High and Clinton. 

Sixth District School, Herman st nr Brown. 

Seventh District School, cor 5th and Barnett. , 

Eighth District School, Texas n Dayton. 

Ninth District School, HuiTman ave nr Mam. 

Tenth District School, 5th st nr Levee. 

Physicians and Surgeons. 

Ackelson, Dr, cor 5th and.Ludlow. 

.Tennings, Dr, Wilkinson st between ad and 3d. 

Jewett, Dr, Jefferson st bet ad and 3d. 

Lowes, Dr, 5th st near Ludlow. 

Neal, Dr, Wilkinson st near ad. 

Rickey, Dr, con 5th and Brown. 

Schiebenzuber, Dr, near Main. 

Webster, Dr W TV, 1 a7 s Ludlow st, 

Webster, Dr J K, 44= e 5th st. 

Daugherty, Dr, cor 5th and Ludlow. 

Photograph Galleries. 

Bunker, P, cor 4th and jefierson. 

Miller, C H, Main bet 4th and 5th. 

Provision and Peed Stores. 

Miller, Mike, Dayton View. , 

MoCausland,. W J, 3d and Canal. 


Gibbons & McCormick, Jefierson st near 3d. 


Brown’ Clias H, i 

■Cr“os'’sr"’c® avenue 

.n.rl ft "" St. 

Clark, Clias, Warren St 
Cotterill, Sam, s JelTerson st 


Gebliart, Geo, s Wayne st. 


Harman, Ezra, s Wavnp 
Sne!Vj, Dayton 

■ Lowe, Col J 6, s Main st. 

Motb’ F B,^un?ar‘ View. 

Mead, H E, Oakwood. 

Nash, R Jr, 43; g Water. 


Pruden, David, Moun§st, Miami City. 


Parrott, Col E, Oakwood. 

Reed, J Lane, Jefferson st. 

Rickey, Jas W, w zd st. 

Stoddard, J W, Dayton View. 

Stoddard, Fowler, e First st. 

Swartz, S C, room 80, Beckel House. 

St. John, A, Linden anenue, near Third st. 

Wilson, Geo W, 305 Warren st. 

Wight, C, 37O w Second st. 

Wood, Capt E M, s Jefferson st hetath and sth. 

■Wolf Bros, St Mary’s st. 

Webster, Dr W W, 115 s Ludlow st. 

Real Estate and Ticket Agencies. 

Bellows, 3d st, Huston Building. 

Fellows & Bragg, w 3d nr Phillips House. 

Railroad Offices and Depot. 

A & G AV, J Hardy, agent, freight office, :st and Keowe st. 
jMe.xander, G M D, agent S Shore Line, n Main st. 

C C C & I, B F Hargrave, agent, cor Carnell and Water. 

D & M and C H & D, Lewis Cassell, agent, freight depot - 
3d and AVehster. 

D & H, Chas E Miller, agent, freight office cor Prairie and 
D C & T R R Offices, cor 5th and Main, Pruden building. 

D & S E, E F Pryor, agent, cor 3d and McDonough. 

D & S E Round House, n s 1st st e of Keowee. 

D & S E Hoist, n s ist st e of Keowee. 

-G AV Despatch, C Chamberlain, agent, 13 s Main st. 

P C & St L, J H Zell, agent, cor 3d and Bainbridge. 
Receivers Office D & S E, J E Gimperling, Receiver. 

Union Passenger Depot, Chas H Clough, ticket agent. 

ScAving Machine Offices. 

St John, Chas Baird, agent, w Third st, near Main. 

Saw Manufacturers. 

Lewis, B AV & Son, 411 and 413 e ist st. 

Stone Yards. 

Brice, S T, AVilkinson st and Union Depot. 

Huffman, Win, e sth and Huffman ave. 

Webber, L H, Jefferson st opp Buckeye. 

Wholesale and Retail Liquor Dealers. 

Beckel k Fohlmeycr, sth and Brown. 

Fritch, Nipgen & Co, 3d nr St Clair. 

Fletcher, J R, cor 5th and Brown. 

Kern, Philip, 5th opp Stone sL 

Gold and Stock Telegraph Company 

This folder contains printed material issued by the Gold and Stock Telegraph 
Company. Organized in 1867, this company furnished gold and stock price 
quotations by telegraph. 

The following item has been filmed: "Edison's 'Universal Printer' for Private 
Lines. Instructions" (ca. 1871-1873). 

i ORANOE, N.| J 





OOMPAlirT, '• 

. .^Nq'.S. 







No. 3. 


Universal Printer. 

This instrument works upon one lino wire. It 
performs three operations, to wit: 

The rotation of tlie t^-pe wheel, the correotion 
of the tj-po wheel and the impression of the letter. 

The instrument has two distinct mechanisms— 
the transmitting and printing devices. 

Electric Engine. 

The transmitting devices, consisting of the 
main break, stop pins, eta, are driven hy a small 
electric engine, run hy a local battery. 

The transmitting devices me detached from the 
engine while in motion by the depression of any 
key of the keylmnrd. 

The engine is provided with a governor, by 
which the speed of the instrument can be inereas- 
ed or decreased, and every instrument in a circuit 
made to run exactly alike. 

The instrumoiit proper is similar to the stock 
reporting machine, with the exception o£ a vibra¬ 
ting contact point, operated by the escapement 
lover, which opens and closes the local printing 
circuit The printing lever is operated by a mag¬ 
net placed in this local circuit, instead of being 
placed in a second main oireuit, as is done in the 
stock reporting instrument The vibrating point? 
is^EO avrnngod that the local printing circuit is 
closed when the main circuit is open. 

One magnet, with an armature and forked lover 
acting on a toothed wheel, gives motion to] the 
type wheel step by stop. This magnet is placed ' 
in’tho main circuit, and is called the typo wheel 

Another magnet is placed in a local circuit, which 
circuit is opened and closed by a vibrating con¬ 
tact spring on the escapement lover. Owing to the 
rapidity of vibration, the local circuit is not closed 
long enough to allow the magnet to oliaigo and 

move the printing lever; but if a key is depressed 
the vibrating point stops and 'closes the local cir¬ 
cuit, wliieli allows the jirinting magnet to become 
ohaiged, and the printing lever is thrown up to 
the face of the typo wheel. The printing magnet 
is operated by a separate local battery. 

The two magnets which operate the electric en¬ 
gine are called the engine magnets. 

Description of the Engine. 

Fig. 1 shows the engine and its connectiona 
The break spring, 168, is made to ■vibrate between 
two contact screws in 164, by a small cam upon 
the engine shaft, 168. One contact screw is con¬ 
nected to one pair of magnets, and the other con¬ 
tact screw to the other pair. 

The other ends of both magnets are connected 
to one pole of the local battery, and the spring, 
168, to the other end. 178 is the revolving arma¬ 
ture secured to the engine shaft, 168, by a collar 
and set screw. This revolving armature and con¬ 
tact spring are so adjusted that the circuit is 
thrown from one pair of magnets to the other. 
When the revolving armature is nearly over the 

cores of the mngnots, by throwing the circuit 
alternately through the two pair of magnets a 
constant rotation of the engine shaft is obtained. 
The screw, 188, holds the cuj> shaped centre, in 
whicli the point of the engine shaft riina 
This centre is made to hold a small amount of 
oil 186 is the starting ratchet, whieli it is some¬ 
times necessary to use to give an initial start to 
the engine when the battery is switched on, the 
revolving armature having a magnetic centre. 
The arm 7 (see 6g. 2), extending out through the 
base, is pushed in to give this motion. 186 is 
the engine gear wheel, scoured to the engine shaft 
by the screw and collar, 184. This gear wheel 
. (see fig. 2) is connectod to the transmitter gear 
wheels. “ 

No. 167 is a sleeve with a small rim at its lower 
extremity. It is scoured -to the cross piece, 166, 
and governor arms and balls, the whole rising ns 
the speed of the engine shaft inercasos or de- 
■ creases. 

The bent wire, 97 (see fig. 8), is the device for 
regulating the speed. This arm is secured to and 
insulated fiom 99 by the rubber bushing, 98. To 
the lower end of this regulating rod ‘is scoured the 

insulated wire, 14L This rod may bo raised or 
lowered by the screw 101. The extreme end of the 
rodjs bent over townids the sleeve and flange, and, 
as the governor balls spread out, the flange upon 
the sleeve comes in contaot with the bent portion 
of the regulating rod | when this ocoura the engine 
battoiy is “out ofiE" from the magnets or “short 
eirouited." Wlion this contact takes place tlie 
speed decreases, the governor balls drop, and the 
short circuit is broken and then quiokly made 
again. It is obvious that the position of the rod, 
97, will determine the speed of the engine. By 
referring to fig. 1 it will bo seen that the contaot 
spring, 168, is not insulated from, but in conneo- 
lion with the whole frame of the engine. One 
end of the batteiy is connected to the frame, and 
the arm, 97, to the other end of the battery, hence 
a connection between the end of the rod, 97, and 
the flange on the sleeve, 167, forms the short 

Tlie contact points in the rubber piece, 164 (fig. 
1), should be cleaned every two or three months j 
but bad contact will not prevent the engine from 
nmning, os a failure to make connection in one 
part of the revolution will be compensated for by 


tho momontum of tlio governor balls, wliioli will 
carry the slmft'arouncl to tho next oontaot • 

The contact spring, 108, sometimes breaks at the 
point where it is eonneoted to the brass plate, 161. 
In tliis case replace by a new one. 

The wire, 141 (see fig. 8), is secured to the regu¬ 
lating rod, 97, by a small screw at its lower end • 
It sometimes happens that tho arm or rod, 97, gets 
turned in such a 2 )osition that this small screw 
touches one of thocollara on tho shaft, 105, “short 
oironitmg ” tho engine battery permanently. Care 
should be taken that the screw is adjusted ns far 
away from these collars as possible, and that the 
screw, 101, which holds tho rod, 97, should be 
tight, or the outward motion of tho governor balls 
may have sufficient force to loosen the arm 97 
The holding piece, 99, may be turned in any posil 
tion by a screw at the back. 

The Main Break. 

Fig. 4 shows the main break; 49 is the main 
break wheel, having thirty teeth. 

Upon the same shaft mth tho break wheel is a 
smaU gear wheel, 48, which is used to connect the 



main break with the centre wheel of tho instru¬ 
ment ; 64 is tho main break lover. (See fig. 6.) 

A vibratory motion is given this lever by the 
teeth on tho main break wheel. 

Upon the o.xtremo end of this lever are two 
platina points; in front of these points are two 
fiat watch springs secured to a stud, 66; on the 
extreme ends of these springs are two platina 
points facing those on tho lever, 64. One spring 
is sot slightly in advance of the other (about the 
thiokness of a piece of paper). Tho two springs 
are insulated from tho arm, 64, and are connected 
by a wire to one side of tho type wheel magnet 
through a hole in the base, tho other end of the 
typo wheel magnet being connected to tho line by 
the wire. A, and binding post, 26. 

The arm, 64, and all other portions of the main 
break are connected by the vdre, D, to tho bind¬ 
ing jiost, 29, and thence to the main battery and 

It will be seen that the main lino oireuit, vdth- 
in which are tho type wheel magnets, is opened 
and closed by the double platina points. The 
reason for placing one of the platina points a 
little in advance of the other is that when the oir-J 

ouit is broken the apnrk nlmost always comes on 
tlio point wliieli is sot in atlvanco. This keeps 
one point clean and unoxidizod. The iioint which 
takes the spark fails to connect about once in 
every thirty revolutions of the tyiio wheel, but 
the other point ensures the connection and pre¬ 
vents the tyije wheel from throwing behind one 
letter. As this point does not receive many 
sparks, it will be several weeks before it will be 
necessary to clean tlio two points. In cleaning 
them use lino emery paper, and be careful not to 
alter their adjustment, ns a veiy slight change 
ivill increase or deoreaso the length of the main 
break, and mtorforo with the adjustment of the 
typo wheel. 

In receiving a message, the main circuit is pre¬ 
vented from O 2 )oning at the double plntina ]]oints 
by two e.xtension ivires, F and G, running to the 
switch spring holder, 20, and .shaft, 28. The two 
switch springs, 21, are included within the engine 
circuit, so that, by turning the shaft, 28, the engine 
circuit can bo opened and clo.sed. 

There are two brass irieces, 28, inserted in a 
hard rubber collar on the switch shaft Wlien • 
the switch is turned, to transmit a message, the 

nKorsnsAi sroos raiSTEH. 

springs, 21, connect acres.? tlio brass piece and 
close the engine circuit, which, in its turn, starts 
the main break, and tlie type wheels are ro¬ 
tated. At the same time tlie “eut-olt” on the 
main break is rendeicd inoperative by the sjirings 
sliding off of the brass ijicoe, 28, on to the hard 
rubber. These brass pieces and contact sjjrings 
should bo kept clean, to obtain perfect connec¬ 
tion, otherwise trouble will occur either by the en¬ 
gine'circuit or main circuit opening. 

Fig. 8 shows the centre gear wheel. Upon the 
shaft, 88, are two gear wheels, 88 and 84, and a 
ratchet wheel, 82. 

The gear wheel, 84, and ratchet wheel, 82, are 
secured firmly to the shaft, 88. The wheel 34 is 
g^red into (see fig. 2) the wheel 16, and thence 
to the engine shaft The wheel 38 is loose upon 
the shaft, 88. 81 is the stop lover, also loose 
upon- the shaft, but secured to the wheel 33 by 
the pin 48. The hole in the stop lever is a little 
iaiger than the iiin, 43, which allows the lover 
to have a lateral motion suflioieht to lift the 
click, 89, out of the teeth of the ratchet wheel, 
82. The spring, 42, keeps the click up to the 
[ratchet teeth. The three prongs of the stop 

lover rotnto iii tlio pntli of tlio linger key nnns. 
The mein break (see fig. 4) is geared into the 
loose wliool, 88. 

Tlie manner of detaoliing the main break from 
the engine meohauism while in motion is very 
simple, n a key is depressed, one of the ends ot 
the stop piece, 81, comes in contact with tlie key 
arm and arrests its fonvard motion. Tiio click, 
89, is lifted out of the ratchet wheel, and the gear 
wheel, 88, and main break (see fig. 2) are stopped, 
whde the engine and its gear wlieels continue in 

The stoppage of tlio main break, of course 
prevents any further interruption of the main cur¬ 
rent; the type wheel is stopped; the vibrating 
point upon the escapement lever closes the print¬ 
ing circuit, and the letter is impressed upon the 

If the finger key is raised, the click, 89, falls into 
the ratchet wheel, 82, the wheel 88 and main 
break are locked to the engine mechanism, and 
ire carried around until another finger key is de¬ 

The spring, 86 (fig. 6), is used for the purpose 
if providing a slight friction between the meehan- 


ism which is stopped and tliat ivhicli is rotated, to 
prevent a rebound of the former when it is sud¬ 
denly arrested, and also to ensure the raising of 
the click, 89, promptly. 

In carrying the instrument care should be taken 
that none of the mechanism underneath the base 
is displaced by the arm or hand. 

All the bearings of the engine mechanism 
should be oUed occasionally. 

The Type Wheel and Printing 

Figs. 8, 7 and 8 show the type wheel and print¬ 
ing mechanism. Fig. 8 shows the instrument 
with the type wheel and printing lever taken out; 
fig. 7 shows the printing lever, and fig. 8 the type 
wheel. 86 (sec fig. 8) is the unison arm; a pin, 
87, on the end of this arm runs into the worm or 
screw, 67 (see fig. 8). 98 is a spiral spring, which 
holds the unison arm doivn to the worm. 201 
(see fig. 7) is the unison tripper, the arm, 86, 
pas-sing through the slot, 201, so that by the rais¬ 
ing of the printing lever the unison arm is thrown 
but of the worm and placed back to the ratchet 

wheel, (IfJ. Upon the worm near the typo wheel 
IS a stop pin, 08, which, coming in contact with the 
square end of the unison ann, 80, blocks die 
further progress of the tjqjo wheel. The shaft 
which cariies the tjqie wheel must make three 
revolutions before the worm uill bring the unison 
arm up to the stop pin, 08. Wlien the type 
wheel is blocked the escapement lever continue 
to ^^brate until a finger key is depressed. If the 
firat dot key on the e.xti-eme left is depressed after 
the type wheel is blocked, the vibrations of die 
escapement lever will cease, the printing eirouit 
will be closed, and the printing lever will throw 
the unison arm away from the stop pin back to the 
ratchet wheel, and the type wheel is in iiT.;..n» 
ydth the dot key, and free to move forwaid when 
It is raised. 

Before a message is transmitted the engine 
should bo started, and the type wheel allowed 
to rotate until stopped by the unison aim; then 
the firat dot key should be depressed and held 
cloivn until the printing lever is thrown up; then 
the type wheels will be released, and rvill cor¬ 
respond with your transmitter, and the message 
can be sent In the act of sending a message the 

finger should not bo raised from one key until 
the next is depressed, otherwise the type wheels 
. might run to unison before the desired letter 
could bo found, and thus put both type wheels 
out of unison with your transmitter. The keys 
should not bo raised until the printing lever is 
heard to strike the tyjio wheel. 

It sometimes occurs that the type wheel of one 
instrument will catch at unison on the second 
revolution, and the other instrument on the third 
revolution; therefore, when your typo wheel is 
stopped by the unison, you should allow it to be 
locked for two or three seconds, to ensure the 
locking of tlie distant typo wheel before depress¬ 
ing the unison dot key. 

In receiving the message, if it is found that, 
after two or three words have been printed cor¬ 
rectly, the type wheel thiwvs out and commences 
to print a jumble of letters, you can break the 
transmitting operator by turning your switch and 
storting the engine for an instant 'I'ho trans¬ 
mitting operator mil notiee the irregidar breaks 
and stop; this will allow you to tell him where to I 
go ahead; but it is better for the transmitting 

Tin's will nrc- 

tJi ' I* "ill bo nMfc„| ,ta 

there are two screws, 192, having jam nuts uiZ 
the armature of the printing lever and mi so 


rpe ulieel, so tins prevents the type wheel 
emg retarded by the printing wi* ^en tl 

0 no sciowa m the aimaturc of the nrint- 
g lever, .t would lag against the typr^ed 

of 'I’l'eomployfnontof-the 

It thisla^m “'““'"ess of the lettera • 

improper tension of some smnU spring may pre¬ 
vent tlie instrument from working satisfactorily. 

I Fig. 9 shows the connections for one pair of 

The engine and printing local have three cups 
of hatteiy each, the two zinc ends of which are coii- 
nected to the return binding post of the instrument 
Iho mam battery can be divided, half being 
p need at each end of the line, or all may he 
placed at one end or in the middle. 

X IS a switch, whieli is sometimes included in 
the mam oirouit, to open it at night and prevent 
the consumption of battery material. 

Fig. 10 shows the conneotions for three instru- 
ments, with the battery at one end, and a switch 
for opening the main circuit at night 

Testing' Instruments. 

Before starting a lino the battery should ho set 
up and “short oireuited” for one or two days, and 
the instrument thoroughly tested before it is 
placed upon the lino. 

The amount of battery required to work the 
printing lever magnet is three cups; three for the 
engine; five cups main for each instrument, and 
five cups for each mile of line wire; providing, of 
course, that there are no bad conneotions or de¬ 
fective ground wires. Any o.xtra batteiy put on 
the main will give the instrument a greater mar¬ 
gin for adjustment. 

Spare Instruments. 

A set of spare instruments, thoroughly tested, 
should bo kept on hand to relievo defective in¬ 
struments outside until they can be repaired. 

The instruments should be kept free from dust 
and paper fibre by the inspector. Tliis can ho 
best done by using a wide camel hair brush for 
the fibre and dust, and a small piece of chamois 
skill to olenii the parts. 

The inspector should visit each instrument in 
the morning; start it up and print a few words, 
and note how the instrument has worked the pre¬ 
vious day by referring to the slip; notice the 


In inking the instniniont do ndt n„t i 
on nt once: raise tlm ini-, n „ ^ '""oli 

the cloth. After tlm i ♦ ^ ^ *® whole of I 

sovoral weeks the sham '“‘vo worked I 

’ tlio side of the typo wlied” °Vi'^ “J’ I 

bro upon paper by f i I 

■P-vliocI and »lmft Z'L 

■•owing tlie clamping soL^ ms “"■ | 

P typo wlieM soaked i„ beiLim or"f ""•* I 
'"ff « brush, and winin- dr ! 1 r ‘"'l^ontine, I 
In talcing out anvsLfr "’i '•oplnoing. I 

■ft, priiidng " e^ef oS I 

ofuland&assa oily one s“ ''’‘f'i >>0 I 

epiaoed it will return U> ZT’ “■ I 

upiod before it was taken oira^™° “ | 

When an,instrument Is reported to bo working 
badly the first thing is to ascertain that there is 
no trouble on the line, or tvith the battery, ns it 
frequently occure that line and battery troubles 
are attributed to the instrument, and the mistake 
not found out until the instrument has been de¬ 
moralised by adjusting it in all manner of waya 

7'Ae following are some of the faults generally 
found when the instrument is reported out of order; 

Paper Caugut.—P roiaife Cause.—First. Keel 
sleeve Ixniiid, or paper unwound and kinked. 
Second. Paper put in svrong. 

To Fix it—First Loosen the jam nut Second 
Instniet subscribers to put the paper in properly. 

Paper Failing to Feed— ProiaJfe Cause.— 
First Bind in reel. Second. I’cetli on upper feed 
eliek dull Third. Spring too weak to hold click . 
(lown on the paper. Fourth. Teeth of lower stag^ 
eliek dull. FiJVi. Spring on lower stago.olick too 

To Fix It—First Loosen the jam nut Second. 
Shar]]en the teeth to a fine point with a small oH, 
stona Third. Pull some of the spring through 
one of the holes, to increase its tension. To make 
sure that you have remedied it, hold the lower 

arooK lEiEoRApn co.’s 

Btago dick Rwuy from tho papor, and tiy to pull 
It (tho paper) back and forward sovoml times 
through tho .mstrument If the feed eliek pro- 
vente tho paper from being pulled bade the dofeet 

Tapoi adjusting pms shaken loose by tho jar of tho 

wards ^ve them a sharp raj) until tho handle of a 
.er^ew driver. W „„d 77,.Vd. New thread and 

BA^ Pm^NNG—Probable Cause.-Fir,t. Tvne 
wheel ful of fibre. &eead. Ink too thin. 7^ 

and does not i)ik portions of the typa Fifth 
serens in tho printing lover armature adjusted so I 

far on‘“T“! ‘ “™'”g “P 

far enough to give^a good iinpressioa 4^1 

Not enough battery power to oueot the impres¬ 
sion. Ninth, Bad pad. 

?b Fix It. — Fint. Clean tho type wheel. Necond. 
Use thiokeuod ink. Third. Clean oil a portion of 
tho ink. Fourth. Change for an oven roller. 
Fifth. Sot the typo wheel so that it tvill print tho 
letters full, and not print tho edge of the lottere on 
eaoh side of it; leave tho sorow whioh sooures the 
type wheel to tho shaft very tight, to prevent tho 
type wheel slipping. Sixth. New pad. Seventh. 
Adjust tho limiting screws ns before dosoribod, 
and tighten tho jam nuts, or they will shake loose 
by the constant knocking of tho ends of tho screws 
on the cores of tho magnet Eii/hth. See that the 
printing lover works freely, and fix the battery. 
Ninth. Now pad. 

It will bo seen from the above that there are a 
great many ways in wliioli bad printing occurs, 
and it will bo found that tho inspector needs con¬ 
siderable e.xporicnco to obtain good printing. 

Throwing Out op Type Wheel. —Prohahle 
Cause.—First. The escapement lever and\ typo 
wheel shafts have too much side shake in their 
centre or pivot screws. Second. Not adjusted 

teiy. Tkotljlh. Edge of tlie cscnjicmoiit lei 
prong touches too near the edge of the rate! 
teeth m vdirating. ThirUenlh. Bud contac 
FourUenOi. Vibrating contact spring adjusted 
that tlie printing circuit is not oirened before t 
typo wlieel starts. 

To Fix Il.-^FCrst. Take all the shake out 
tlie escnpement lever slmft tlmt is ]K)ssiblc b 
leave considerable shake in the type wheel 4n 
&com/. Adjust jnoperly, which can only 1 
learned by e.4crionoe. Third. Adjust the ma 
break so that the pulsations will .sound like she 
Morse dnsho.s. FourUi. Ii00.sen slightly and s 
the jam nut tightly, and oil. Fi^Ui. Tighte 
&'xlh. tlm foi.sin., o_5,. , 

only enough to pull tho unison arm back, and put 
a little oil in the slot, 201, of the unison tripper. 
Seventh. Not enough tension on the unison spring, 
or unison arm bound in screw, or not lifted high 
enough out of worm; unison tripper bent Eighth. 
Adjust typo wheel magnets about two thicknesses 
of paper away from the armature when the circuit 
is closetl. Ninth. Incimse or dcoroaso the tension, 
by taking up or letting out the spiral spring; tho 
tension on tho click should bo a little more than 
the tension of the spring on the uni.son arm. 
Tendi. Two turns of sounder wire around tho ink 
roller shaft nearest the unison pin, whioli will pre¬ 
vent tho ink roller from approaching near it 
EkvenOi. Experience will determine this. Twelfth. 
Too much shake in the escapemont lever or typo 
wheel shafta TAirfcentfi. Clean tho platina points 
of tho main break with fine ornery paper, and be 
sure tho trouble is not on tho line or a bad con¬ 
nection in the instrument or office. 

Unison Abm not CMtomm.—ProlnUe Cause. 
—First Stop pin too smooth. 

To Fix IL—First Roughen the end. ,, 
Engine Faii.3 to Start when the Switch 


ahh Cause. — First. Bad connection in tlio battery. 
Second. Switch .springs, 21, fail to connect Third. 
Vibrating spring, IflS, broken. FourOi. Engine 
shaft out of itscenti-e. Fifth. Battery cut off or 
"sliort circuited " in regulating rotl 
I'o Fix iL—FirsL Examine battery. Sexond. 
Clean switch springs and brass piece, 28. Third. 
Eejdaco by a new one. Fourth. Hepinco the shaft 
in Its centre. The engine shaft rests upon a shal- j 
low cupped centre, which contains oil, and it some¬ 
times occura that when the ongiiie starter is pushed 
in suddenly the spring will lift the shaft out of 
its centre. FiJVi. The screw that secures the in¬ 
sulated wire to the regulating rod, 97, touches one 
of the eollam on the shaft, 105, thereby “sliort 
cneuiting” the engine battery. It should bo ad¬ 
justed away from the collar. 

Enoink Stops oii'Slows Down wjikn a Key 
IS Djjpuesski). —ProAaJfc Cause.—PirsL Too 
much friction on the spring, 85 (see iig. 6), or not 
enough to tlirow the click, 39, out, and the end 
keeps knocking on the edge of the ratchet teeth. 

2o Fix A—Increase or dedreaso Hie tension of 
tlie spring by means of the screw, 47. 

Engine Meouanisji "WoKKa Haud.—/V oiaife 

Cause.—First Gear wheels sot too deep into eaoh 
other. Second. Bind in the centres of the three 
gearwheels. Third. Centres want oil. Fourth. 
Click on engine starter rubs on ratehet wheel. 
Fyth. Revolving armature touches face of magnet 

2b Fix It—First Sot gear wheels so that the 
teeth will not bottom in eaoh other, yet not too 
loosel3'. Second First oil, and if this does not 
make them go easier loosen the centre screws. 
Third. Increase the tension on the spring, 8, on 
the engine starter. FourOi. He-set revolving arma¬ 
ture T^th of an inch away from the face of the 
corcsL In doing this be careful not to turn the 
armature around on the shaft, ns it must bead- 
justed in relation to the break, ns previously de 
scribed. „ , 

Fikgek Keys Sticking Down. — FrobubU 
Qtuse.—First Aims bent Second. Dust 

2b Fix A—Work it up and down rapidly witl 
tho finger. 

All doteetivo_or broken parts should bo si 

the zinc, tind also ooimeota it with tho copper of the 
next coll. Cth. Two pins to put in tlie holes of 
tho other two zino arms, thereby assisting in hold¬ 
ing tho zinc up to tho proper level. 

Quantity of Battery Required, 

For the local batteries which work tho “ engine” 
and tho “press magnets" use the largo size or 
“ local ’’ colls. For tho main circuit which works 
the c.scapomont magnet use tho small size or 
“main” colls. Tlio only difference is in tho 

; In calculating amount of main battery required, 
allow' five colls lor each instrument in tho circuit, 
and five cells tor each mile of lino, provided ordi¬ 
nary telegraph wire is used. If tlio resistance of 
your lino exceeds fifteen ohms per mile j'ou may 
need more main battery than the above. 

This rule holds good only lor short lines; on 
lilies of four or five miles and over tho number of 
cells maj’ bo reduced. 

Putting up the Battery. 

caro to replenish the tube with lumps of blue 
vitriol every day. It will sometimes take more 
than two days to bring the batteiy up to the 
proper strength. 

. Keeping the Battery in Order. 

The action of the battery is as follows: 

The blue vitriol in the tube is dissolved, and 
the solution do.sconds through the notches in the 
cork and spreads out over the bottom of the cup. • 
I When the battery is kept closed the blue solution 
will generally rise about half an inch, or an inch 
at most, and as the lumps of blue viti-iol in' the 
tube dissolve, more should bo added, and the tube 
should never bo allowed to stand without any in it 

It is not advistiblo to till this tube with lumps 
above the watci- line, ns tlioy sometimes cake' 
together at the siirtaco of the fluid, and the con- 
sequeneo is the tube may appear to be full, look^ 
ing at it from the top, while in reality there is 
only a crust of blue vitriol there, and none at the 
bottom to keep up a supply in the jar. 

To make sure of its condition, examine tho tube 
through tho sides of the jar. If the liquid is too 


•!'V «'e tube 

ml with the lumps it can all be put in together. 

rornrit"® V^'^Sotvc the 

so ution of blue vitriol i„ tlie jar will consist of 
sulphate of vine chs.soHcct m water. Wlie lit 
solution IS too veak the battery will not he ro ,l 
enough to work, on the other hand, when H h° 

therefolo, it is impoitant to kmow its condition at 
any time, which can he done with the 1. 

hydroMUei ruiu.>.cd(uiacise)withthel“ 

The stronger the solution of sulphate of sine 
the higher will the hydrometer rise in it W en 

e solution is strong enough to work. When the 

sdutoi gat g too St 01 „ 1 lould he 

ft ai?d^fin^° “f 

^ ““J np carefully with water. 

the in the battery is 

the foimatiou of efflorescent crystals of sulplmto 

£ ^ino on the edge of the glass above the liquid 
hey should ho cleaned oft as they acciimulat 
,nd saved to start new batteries with. 

Owing to a battery being too much on o c 
•ireuit the blue solution will sometimes iise ti 1 

SLthezine. In this ease thebatteiyshoffl^^^^^ 

hort-eiveuited overnight, whichwillbnug^ 

About once in three months the sine should 
■arefully lifted out of the jar svithout disturbi 
the liquid, and the black scale and depo 
knocked or seraped oft. Then return the . 

™ When the water in the jar evaporates it slim 
bo replenished by pure water. The copper a 
bottom will become covered with a mass 
metallic copper; this will do no ha™ 
becomes so large as to be in the way, when a 
copper niiist ho put in. The old copper with 
deposit is valuable, and must bo kept and sen 
York from time to time as it aceumulata 
About once a year the whole battciy shoult 
taken down, cleaned and put up anew. 

• When a good many cells of this battery ar 
use, now cells can bo started at once in 
strength in the foUowing way: 

Menlo Park Manufacturing Company 

This folder contains printed material issued by the Menlo Park Manufacturing 
Company. This company was organized in 1879 under the direction of Charles H. 
Lewis, Francis W. 3acobs, and William McMahon. It was licensed to manufacture 
Edison's Polyform, a medicinal formula that the inventor tried unsuccessfully to 
patent. The company abandoned the manufacture of polyform about 1881 after the 
business proved unprofitable. 

The following items have been filmed: 

1. Label from a bottle of Edison's Polyform (ca. 1880) 

2. Advertising circular (ca. 1880) 

3. Advertisement (Scribners , November 1880) 

4. Advertisement (ca. 1880) [photocopy] 


i neuralgia, rheumatism?;' 

( UEADACm and nU NEETOBS I'AIK, .. v" ■ 
by external application. In has^it-i 
j been known to fail in giving relief when prop- 

. erly used according to directions. . 




Poorloss Tobacco Works. '' ' 


-- /Vo-J 







And all Nervous Pains. 


HeUo M HaiMriiig Go., M Tort 



Tliointis A. Kdison’s renture into the field of “elecdrical cures” An ad- 
iK'rlisemcnt in “The Youth’s Companion;” November 10, 1881. 

"Osoar Wilde Dlsoovers America leaE** 

By Lloyd Lewis and Henry Justin Smith 
(Haroourti Brace and Company) 

Sims-Edison Electric Torpedo Company 

This folder contains printed material Issued by the Sims-Edison Electric 
Torpedo Company. This company was incorporated February 16, 1886 to construct 
torpedoes, torpedo boats, submarine?, and other instruments relating to naval 
warfare. Edison served as the consulting electrician and as a trustee of the 

The following items have been filmed: 

1. "Certificate of Incorporation and By-Laws" (1886) 

2. "Sketch of the Sims-Edison Electric Torpedo ..." (1886) 

TBG $im?-GDi$pn 



Electric Torpedo Company. 




Electric Torpedo Company. 

JOHN ANDERSON. - - - President,. 

GARDINER C. SIMS, - - - Vice-President. 

LEWIS MAY,.Treasurer. 

FRANK W. ALLIN, - . - - Secretary, 
W. SCOTT SIMS, ' . .. General Manager. 

THOMAS A. EDISON, Consulting Electrician. 
GARDINER C. SIMS, - Cohsuiilng Engineer. 












We, Thomas A. Edison, Charles Batchelor, 
Gardiner C. Sims, W. Scott Sims, Lewis May, 
John Anderson, William M. Been, Prank W. 
Allin and George H. Stayner, do hereby certify 
as follows: 

Mrst; That we desire to form a company pur¬ 
suant to the provisions of an act entitled, “An 
Act to authorize the formation of corporations for 
manufacturing, mining, mechanical or chemical 
purposes,” passed February 17,1848, and of the 
several acts extending and amending said Act. 

Second,; That the corporate name of the said 
Company is to be “The Sims-Edison Eleotrio 
Torpedo Company.” 


Third! That the objects for which the com¬ 
pany is to bo formed are as follows, to mt: The 
manufacture, sale and use of torpedoes, torpedo 
boats, submarine vessels and war ships, war 
materials, electric machinery and instruments, 
dynamo machines, electric cables, wires, motors, 
electric lights and all appliances for the same- 
together witli steam engines, boilers and supplies 
of every kind; also the purchase of letters patent 
of tlio United Stales and elsewhere for inventions 
and discoveries relating to torpedoes, torpedo- 
boats and submarine vessels and instruments used' 
in and about the construction, propulsion, steer¬ 
ing,-loading and explosion thereof and the appli¬ 
cation thereto of electricity and also the gi-anting- 
of licenses to manufacture and sell under such 
letters patent as may bo owned by this Company: 

Fourth: That the amount of the capital stock 
of the said Company is to be one million dollars. 

Fifth: That the number of shares of which 
said stock is to consist is to be ten thousand of 
one hundred doilars each. 

Sixth ,.- That the term of the existence of the- 
sald Company is to bo fifty yeai-s. 

S^enth: That the number of trustees who. 


ahall manage the concerns of the said company 
shall be nine. 

Eighth.: That the names of such trustees for 
the first year are Thomas A. Edison, Charles 
Batchelor, Gardiner C. Sims, W. Scott Sims, Lewis 
May, John Anderson, William M. Been, Frank 
W. Allin, George H. Stayner. 

Ninth; T'hat the name of the town and county 
in which the business of said Company is to be 
carried on are the City and County of New York 
which is to be the principal place of business of 
this Company. 

"Wiincss our respective hands and seals this 
16th day of February, A. D. 1886. 

THOMAS A. EDISON, (l. s.) 


GARDINER C. SIMS, (n. s.) 

W. SCOTT SIMS, (n. s.) 

LEWIS MAY, (L. 8.) 


W. M. BEEN, (L. s.) 

FRANK W. ALLIN, (l. s.) 

GEO. H. STAYNERj (l. s.) 
In presence of , 




On this 10th day of Februaiy, A., D. 1880, be¬ 
fore. me personally came Thomas A. Edison, 
Charles Batchelor, Gardiner' C. Sims, Lewis 
May, John Anderson, William M. Been, Frank 
W. Allin, George H. Stayner to me respectively 
known and known to me to be the several persons 
who executed the foregoing certificate and re¬ 
spectively acknowledged tome that they executed 
the same. 

Notary PuUic,^filngs County, 
Certificate filed in N. T. County. 


of his appointment as Notary Public for the 
County of Kings with his autograph signature 
and was at the time of taking the proof or aor 
knowledgment of the annexed Instrument duly 
authorized to take the same, and further that I 
am well acquainted with the handivriting of such 
Notary, and verily believe that the signature to 
the said certificate of proof or acknowledgment 
is genuine. I further certify, that said instru¬ 
ment is executed and acknowledged according' to 
the law of the State of Now York., 

In Testimony Whereof, I have hereunto set 
my hand and affixed the Seal of the said Court 
and County the 17th day of February, 1880. 

State of New York, ' 1 

City and County of New York. 1 

i, . James A. Flack, Clerk of the City and 
County-of New York, arid also Clerk of the 
Supreme Court for the said City and County, the' 
same being a Court of Record, do hereby certify, 
that, Frederick R. Orr, has filed in the Clerks 
Office of the County of New York, a certified copy 



I, James A. Flack, Clerk of the said City and 
County, and Clerk of the Supreme Court of said 
State for said County, do certify, that I have 
compared the preceding with the original Certifi-. 
cate of Incorporation of The'Sims-Edison Eleo- 


TBio Torpedo Coju’awt, on file in my Oflice, and 
that the same is a correct transcript therefrom, 
and of the whole of such original. Endorsed, 
Filed and Hecorded 17th February, 1886, lOh 60m. 

In Witness Whereof, I have hereunto sub¬ 
scribed my name and afiixed my Official Seal* 
this 18th day of Febniary, 1880. 

(1 JAMES A. FLACK, Oleri. 



I have compared the preceding with the origi¬ 
nal Certificate of Incorporation of The Sims- 
Edison Eleotbio Torpedo Company, with ac¬ 
knowledgement thereto annexed. Piled and Be- 
corded in this Office on the 17th day of February, 
1886, and do hereby certify the same to be a cor¬ 
rect transcript therefrom and of the whole of the 
said original. 

Witness my hand and tlie Seal of Office of tlie 
Secretary of State, at the City of Albany, this 
17th day of February, 1886. 






Sec. 1. The Annual Meeting o£ the Stouk- 
holdors shall be held on the second Tuesday o£ 
Eebi’uarj' in each year. Notice o£ Hiich meeting 
shall be published in some Newspaper in the City 
o£ New York at least ten days prior thereto. 
Special Meetings o£ the Stockholder may be called 
as o£ten as the Board o£ Trustees may deem ex¬ 
pedient. Notice of any special meeting p£ the 
stockholders shait bo given by publishing the 
same in soinoNewspaperinNew York City,speci¬ 
fying the object of the meeting and depositing a 
copy o£ snch notice in the .post pITice, addressed 
to the stookhoiders at their respective places of 

12 ny-l-AWS. 

residence at least ton days before the time of sncli 
meeting. Any special meeting may be adjourned 
to a future day ; but no now matter, not specified 
in the original notice, shall bo introduced or con¬ 
sidered at any adjourned meeiing, except by the 
unanimous consent of the stockholders present or 
represented. No vote, resolution, or decision of 
the stockholders, at any meeting thereof, shall be 
valid, except for adjournment, unless a majority 
in interest of the stockholders present and repre¬ 
sented concur in such vote, resolution, or decision. 


See. 2. The stockholders shall, at each annual 
election, ehooso bi’’ ballot two persons to act ns 
Inspectors. Any vacancy that may occur by the 
death of an Inspector, or by his refusal to serve, 
or his neglect to attend on the day of election, 
shall be supplied by the Board of Trustees. 


Sec. 3. At all elections and business meetings 
of the stockholders, each share shall be entitled 
to one vote, and may be voted upon by the holder 
in person or by pro.xy; but all proxies shall be 
filed with the Secretary of the Company at or 
previous to the time of voting. . 

MY-LAWB. 13 



Sec. 1. A Board of Trustees shall bo elected 
at each annual meeting of the stockholders of this 
Company to serve for one year next ensuing. 

If for any reason at any annual meeting of 
stockholders as provided by Art. 1, Sec. 1, of these 
By-Laws a Board of Trustees should not be elected 
the Board in existence at the date of such annual 
meeting shall hold over until their successors are 
chosen or elected as heroin below provided for. 

A special meeting for the election of Trustees 
in place of those holding over may be called at 
any time after the annual meeting upon the 
written application to the Secretary, of stock¬ 
holders owning at least one quarter of the capital 
stock of the Company and upon such application 
being made the Secretary must cail a meeting 

Sec. 2. All vacancies in the Board of Trustees 
shall be filled by a majority of the IVustees re¬ 
maining in olfice. H 


Sec. 3. stated meetings of the Board of Trus- 

14 ny-LAWS. 

tees shall be held on the second Tuesday of each 
uiontli. All regular or special meetings may be 
hold at any time upon the call of the President 
or any four Trustees, duo notice of which shall bo 
given by the Secretary; 


At all meetings of the Board of Tmstces five 
shall constitute a quorum for the transaction of 


Sec. 3. No business shall bo taken up or acted 
on at a special mooting, except that referred to in 
the notice of such special meeting, unless with the 
consent of the majority of the whole .Board. 




Sec. 1 . The ollicers of the Compaio’shall be a 
President, a Vice-President, a Treasurer, a Secre- 
taiy, and a General Manager. 


See. 2. The President shall, if present, preside 

BY-LAWS. 16 

at all'meetings of the Stockholders and Trustees; 
ho shall bo o.x ofliiiio niembor of all standing 
committees; ho shall also attend the meetings of 
any special committee when requested by the 

Sec. 3. It shall be his duty to sign all deeds, 
contracts, or other instruments in writing entered 
into by or on behalf of the Company when the 
E.xecutivo Committee so direct or approve or 
authoriv.o tlie same to bo done; to sign all certifi¬ 
cates of stock and affix thereto the seal of the 
Company to all instruments in writing when the 
Board shall so authorize and order; and, gener¬ 
ally, ho shall perform all the acts incidental to 
the office of President, and all and any iuits which 
the majority of the Board may direct by vote at 
any meeting. 

Sec. 4. The President shall have exclusive 
charge of the corporate seal of the Company. 


It Sec. 6. In the absence of the President his 
duties shall devolve upon the Vice-President; 
and if both President and A'^ice-Prosident should 
bo absent, the Board shall elect a President pro 

tom, wJio sliiill have and exori 
Prosidont until the President 
resumes liis duly. 

Rise tlie powers ot 
or Vice-President 

^f e. 0. llie Tieasurer shall have the custody 
of all the funds of the Company, and shall keep 
them in such bank or other depositoiy as the 
1 rustees shal 1 designate, in the name of the Com¬ 
pany. He sliall sign receipts and aoknowledg- 
ments for all money and other property of the 
Company which may come into his hands, and 
disburse and appropriate the same only under the 
direction and with the sanction of the President, 
m pursuance of the By-laws. He shall render a 
lull and particular statement of hiscash accounts 
accompanied ivith vouchers, at every annual meet-’ 
mg of the Company, showing the condition of its 
financial affairs, and a similar accoiuit at every 
regular or special meeting of the Stockholders, 
when required by a vote thereof so to do. He 
shall also render a statement of the accounts of 
the Company to the Board of Trustees at their 
regular meetings, aud at their special meetings, 
when so required by vote of the Board. 

Ssc. 7. No money shall be withdrawn from the 
hank or other depository of the Company, except 
on the check of the Treasurer, countersigned by 
the President; and in the absence of the Presi¬ 
dent, the same shall bo countersigned by the Vice- 
\ President or President pro tern. 


Sec. 8.' The Secretary shall notify the Stock¬ 
holders and Board ot Trustees of all the special 
meetings, and shall record the proceedings of all 
their meetings in a book to be kept for that pur¬ 
pose, and shall conduct the correspondence of the 
Company under the direction of the President or 
Trustees, and shall perform such other duties 
appertaining to his office as may be assigned to 
him by the Board of Trustees, or by the President. 

Sec. 9. In the absence or disability of the 
Treasurer or Secretary, the Board of Trustees 
shall appoint a Treasurer or Secretary pro tern 
who shall have and exercise the powers of Trea-- 
surer or Secretary, until the Treasurer or Secre¬ 
tary, resumes his duty. 






Sec. 1. Tliore shall be an Executive Com¬ 
mittee, composed of three members of the Board 
of Trustees, which shali (with the aid of the Secre¬ 
tary, when requested) keep a record of its pro¬ 
ceedings, to bo submitted to the Board at each, 
regular meeting of the Board, or as often as may 
be required , by the Board. A majority of the 
Committee shall constitute a quorum. It shall 
make its own rules and regulations, not inconsis¬ 
tent with the By-Laws of the Company. Such 
Committee shall bo chosen, and vacancies therein 
filled by the Board of Trustees. It may be called 
together by the Chairman, or by any two members 
thereof, for special business. 

Sec. 2. The Executive Committee shall advise 
with and aid the officers of the Company in all 
matters relating to or touching its interests. 

Sec. 3. It shall employ all necessaty em¬ 
ployees, and shall fix the amount of salary to be 
paid to any officers or employees of the Company. 

Sec. 4. It shall have charge and direction of 
all the details of,-and have the general manage¬ 
ment of the business of the Company, and shall 

report at the regular meetings of the Board of 

Sec. 5. The appointments made by, and all 
other acts of the Executive Committee, shall bo 
subject to the approval and ratification of the 
Board of Trustees. 


Sec. 1. There shall be a Finance Committee, 
composed of four members of the Board of Trus¬ 
tees which shall (witli the aid of the Secretary, 
when reque.sted) keep a record of its proceedings, 
to bo submitted to the Board at each regular meet¬ 
ing of the Board, or as often as may be required 
by the Board : A majority of the Committee shall 
constitute a quorum: It shall malte its own rules 
and regulations, not inconsistant mth the By- 
Laws of the Company. Such committee shall be 
chosen, and vacancies therein filled by the Board 
of I’rustees. It may be called together by the 
Chairman, or by any two members thereof for 
special business. 

Sec. 2. The Finance Committee shall super¬ 
intend all the financial operations of theCompany 
and shall meet at least once in each month to 

examine the books and vouohers.of the Company, 
subject to the apptbval of the Board of Trustees 
and shall make full reports monthly of the finan¬ 
cial condition of tlie Company. 

Sec. 3. All acts of the Finance Committee shall 
be subject to the approval and ratification of the 
Board of Trustees. 


Sec. 4. At tlie close of each fiscal year the ac¬ 
counts and assets of the Company shall .be ex¬ 
amined by the Finance Committee and the report 
of such Committee shall be placed on the minutes. 



Sec. 1. The following order of business shall 
be observed at the stated meetings of the Board: 

1. Roll-call. 

2. Reading Minutes of Previous Meeting. 

3. Reports of Standing Committees. 

4. Reports Of Special Committees. 

by-laws. 21 

B.: Evading Communications addressed to the 
Board or its officers. 

0. Deferred and Unfinished business. 

7. Treasurer’s Report. 

8. New Business. 

9. Adjournment. 


Sec. 2. All Special Committees shall be ap¬ 
pointed by the President, unless otherwise speci¬ 
ally ordered by the Board. 



Sec. 1. The Certificates of Stock, shall be 
numbered and registered as they are issued in 
some financial institution located in the City of 
Now York to be designated by the Board of 
Trustees; they shall exhibit the holders name, 
and the number of shares, and shall be signed by 
the President or Vice-President, and counter¬ 
signed by the Secretary, and shall bear the cor¬ 
porate seal. TrariMers of stock shall only be 
made on the' books of the Company, in the pre- 

aenoe of the Secretary or other authorized agent 
■of the Company, either by the holder in person 
or by attorney; and the possession of aCertificnte 
•of Stock shall not be regarded as vesting any 
ownership of the same in any other than the person 
in whose name it is issued, (as behveen the Com¬ 
pany and such other holder) until the transfer is 
duly made on the books of the Company as 


Seo. 2. Wlien a Certificate is first presented 
lor transfer to the President or authorized agent 
■of the Company, the same shall be cancelled. 


See. 3. The Cancelled Certificate shall be 
pasted on the margin of the book from which it 
was taken when originally issued. 


Sec. 4. If any person claim a Certificate of 
Share of the Capital Stock of this Company, to be 

issued in lieu of one lost or destroyed, he shajl 
make an affidavit of the fact, and state the circum¬ 
stances of the loss or destruction; and he shall 
advertise in one or more of the public newspapers 
of the City of New York, to be designated by the 
President, for the space of six weeks, an account 
of the loss or destruction, describing the Certifi¬ 
cate, and calling upon all persons to show cause 
why a new Certificate should not issue in lieu of 
that lost; and he shall transmit to the Company 
his affidavit, and the advertisement before men¬ 
tioned and proof of its publication, and give the 
Company a satisfactoiy bond of indemnity. 



■ Sec. 1 Transfer of Stock shall be made on the 
books of the Company by the holder in person 
or by attorney. No stock can be transferred 
unless .by surrender of the Certificate representing 
the same. 


Sec. 2. .The Transfer Book shall be closed ten 
days previous to the Annual Meeting of the Stock- 


.».;tia.'2 !;r;;r“'2rj.r”s 

by the Board of Trustees. approved 



given in suol. manner as the Boai-d shall direct. 
dividends jiay be wituheld. 


^ TJieso By-Laws may be altered or amended ar 
any regular meeting of the Board of 
Dotioe thereof having beermWat 1 
meeting, in writing, of the alterations prop~ 


Sims-Edison Electric Torpedo, 



Its Applicability to Naval Warfare : 

Official charts and descriptions 




^ims- Bd ison Electric ^orpedo 0ompany, 


JOHN ANDERSON, President. 
GARDINER C. SIMS, Viee-President. 
LEWIS MAY, Treasurer. 

FRANK W. ALLIN, Seeretary. 

W. SCOTT SIMS, General Manager. 



CHAS. H.. WOODRUFF, New York. 

DAVID S. BAKER, jR., Providence, R. I. 


THOMAS A. EDISON,.65 Fifth Avenue. 

CHARLES BATCHELOR, - Gen’l Manager Edison Macliine Works. 
GARDINER C. SIMS. - Armington & Sims Engine Co., Prov., R. I. 

W. SCOTT SIMS,.- Newark, N. J. 

LEWIS MAY,.59 Wall Street. 

JOHN ANDERSON, - - Pres. Com. Tel. Co., 2 and 4 Stone Street. 

W. M. DEEN, 32 Beaver Street. 

FRANK W. ALLIN, - - - - Washington Building, N. Y. 

GEORGE H. STAYNER, - - - - Banker, 25 Nassau Street. 








The Sims-Edison Electric Torpedo. 


t. The Situation and its Problem, 

2. Coast and Harbor Derense, . . - 

j. What is Required ? Elements of Strength, - 
Elements of Weakness—Instances, - ' - 
j. Tho Sims-Edison Electric Torpedo, 

3 . Description of Sims-Edison Electric Torpedo, 

1 . Summary of Peculiar and Essential Qualities, 

3 . Tests by Officers'of U. S. Army, 

3. A Further Crucial Test by U. S. Officers, 

3. Opinions of Gens. McClellan and Abbot, - 

1. Officially Recommended by U. S. A. Officers, 

2. The Sims-Edison Torpedo Company, - 


1. Description and Chart of Official Run by Gen. Abbot, Sept. 22, 

i88o, ..14-15 

2. Description and Chart of Official Run by Gen. Abbot, Sept. 24, 


3. Description and Chart of Official Run by Gen. Abbot, Oct. 28, 1880, 18-19 

4. Official Run to Test Steering Properties, ... - . 21 

5. Photographic View of Torpedo-Float under Artillery Fire, - 20 

6. Official Chart of Test-run against Obstructing Spar, , - - - 23 

7. Official Drawing of Torpedo, Folder at back. 


The Sims-Edison Electric Torpedo, 


The Improvements that have been made in recent times, in ordnance and 
in naval architecture, have completely revolutionized the methods and systems 
of coast and harbor defense. Rifled cannon of long range, and armored ships 
of war rapidly moved by steam, have reordered coast and harbor defenses, that 
were once considered impregnable, as worthless for defense and as impotent for 
offense, as if they were children’s toys. And the problem that is now being 
anxiously pondered in all countries that have a more or less extensive seaboard, 
and important centres of commerce and population, is the crucial one, how to 
protect these from the assaults of possible or actual hostile navies. 

It must be plain to all practical men that a nation whose defenses are 
powerless against the guns and navies of other nations is in no condition to 
treat on terras of equality, much less of advantage, with such nations, and is at 
their mercy—so far as its seacoasts and the large cities which line it are con¬ 
cerned—in time of war. The great cities on its seaboard, which are the 
entrepots of supply and distribution for its people, arc constantly menaced 
with the possibility of destruction, and the people themselves with the certainty 
of buing laid under contribution by an enemy in case of war. A nation and 
people thus defenseless can neither negotiate as advantageously as they might 
in time of peace with a nation and people well provided with offensive 
machinery, nor successfully cope with them in time of war. 

While tills state of tho 'case is so obvious as to need neither argument nor 
illustration as respects those nations whose people are averse, and whose institu¬ 
tions are unfriendly to the maintenance of large naval forces, and who therefore 
keep this arm of the national defense at the minimum, it is scarcely less obvi¬ 
ous as relates to nations which maintain the largest, most powerful, and most 
perfectly equipped navies. For, however numerous and powerful the fleets 
may be of any country having an extended seaboard and exposed cities and 
harbors, one or more of innumerable causes arising from accident, from care¬ 
lessness, from treachery, from incompetency, from storms, or from the menac¬ 
ing presence of an enemy in some other vulnerable quarter, may combine to 
leave a vital point exposed, which, if insufficiently protected may be destroyed 
and the adjacent country devastated or laid under contribution. This contin¬ 
gency is cspcciilly full of danger if the enemy is skiljful, daring and active, and 
one who would not hesitate to sacrifice himself if ho could thereby inflict a 
blow upon his adversary, involving loss of far greater magnitude than, his 
country would suffer from his own destruction. 


That this is not an exaggerated statement, so far at least as relates to the 
United States, and tliat it does not originate in the heated imagination of an 
alarmist, but substantially reflects the views of the caimest and most deliberate 
thinkers of the day, is manifest from the recent letter of Hon. Samuel J. Tilden 
to Hon. John G. Carlisle, Speaker of the House of Representatives. Says that 
abie and proverbiaily cautious thinker and statesman, under date of December 
I, iSSs : 

The property e.xposed to destruction in the tweive seaports-*Portland, 
Portsmouth, Boston, Newport, New York, Philadelphia, Baltimore, Charieston, 
Savannah, New Orleans, Galveston and San Francisco—cannot be less in value 
than five thousand millions of dollars. To this must be added a vast amount 
of property dependent for its use on these seaports. Nor does this statement 
aflbrd a true measure of the damage which might be caused to the property 
and business of the country by a failure to protect these seaports from hostile 
naval attacks. They are the centres, not only of foreign commerce, but of most 
of the internal trade and c.xclianges of domestic productions. To this state of 
things the machinery of transportation of the whole country has become 
adapted. The interruption of the currents of traffic by the occupation of one 
or more of our principal seaports by a foreign enemy, or the destruction of 
them by bombardment, or the holding over them the menace of destruction for 
the purpose of exacting contribution or ransom, would inflict upon the prop¬ 
erty and business of the country an injury which can neither be foreseen nor 
measured. The elaborate and costly fortifications, which were constructed with 
the greatest engineering skill, are now practically useless. They are not capable 
of resisting the attacks of modern artillery. 

A still greater defect exists in our coast defenses. The range of the best 
modern artillery has become so extended that our present fortifications, designed 
to protect the harbor of New York, where two-thirds of the import trade and 
• more than one-half of the export trade of the whole United States is carried 
on, are too near to the great populations of New York City, Jersey City and 
Brooklyn to be of any value as a protection. To provide effectual defenses 
would be the work of years. It would take much time to construct permanent 
fortifications. A small provision of the best modern guns would take several 
years. Neither of these works can be extemporized in presence of emergent 
danger. A million of soldiers, with the best equipments, on the heights sur¬ 
rounding the harbor of New York, in our present state of preparation, or rather 
in our total want of preparation, would be powerless to resist a small squadron 
of war steamers. This state of things is discreditable to our foresight and to 
our prudence. 

The best guarantee against aggression, the best assurance that our diplo¬ 
macy will be successful and pacific, and that our rights and honor will be 
respected by other nations, is in their knowledge that we are in a situation to 
vindicate our reputation and interests. While we may afford to be deficient in 
Hie means of offense, we cannot afford to be defenseless. The notoriety of the 
fact that we have neglected the ordinary precautions of defense invites want of 
consideration in our diplomacy, injustice, arrogance and insult at the hands of 


The problem of Coast and Harbor Defense, which, as has been seen, was 
forced upon the attention of the maritime and commercial nations of the world 
by the revolution that had taken place in ordnance and naval construction, has 
been studied with the gravest solicitude, for the last quarter of a century, by 


the leading military men of Europe and America ; but nowhere_and for 

obvious reasons—has it been pondered with as profound solicitude,.and even 
anxiety, as it has been by the military and naval officers, and the scientists and 
■ inventors, of the United States of America. 

Among the earliest conclusions, reached with substantial unanimity by all 
who have been engaged in the solution of this grave problem, are these: 
That all hitherto existing coast and harbor fortifications and defenses are 
utterly worthless as a means of resistance to the offensive appliances of modern 
warfare.^ And that the powerful war-vessels propelled by steam, rendered 
almost invulnerable to, shot and shell by steel armor, and armed with long- 
range rifled cannon of enormous calibre, which are now built or are in process 
of construction, can pass unharmed any fort which has been, or, in the present 
state of military and engineering skill, can be constructed. 

With equal unanimity they have also reached the conclusion that the 
torpedo is destined to enter largely into all future naval wars, and become, to 
a great extent, one of the most potent weapons, both offensive and defensive, 
in all wars in which fleets engage at sea, or coasts and harbors are defended. 
And further, that by the use of its combined forms in association with other 
permanent or movable defenses, an exposed coast-line, or a harbor can be 
successfully defended against the most powerful guns and ships that modern 
skill and science have been able to perfect. 

Before arriving at tliese conclusions an e.xhaustive study had been made of 
all the known forms of torpedo, having reference especially to the intrinsic and 
comparative value of each, to its efficiency cither singly or in combination with 
other forms, and to its potency for offensive warfare at sea, or as a means both 
offensive and defensive for the protection of harbors and fortifications! 

As a preliminary step, this study involved a careful consideration of the 
questions. What is required or expected of the iorJ>ei/o system, with special 
reference to Coast and Harbor Defense ? What are the elements of strength or 
weakness of the particular forms of torpedo that have been devised and per¬ 

3. What IS Required—Elements of strength. 

The results of this inquiry may be briefly stated, as follows; 

To be thoroughly effective the torpeifo system must be equally reliable and 
serviceable for offense and defense. It must not only render the approaches to 
coast and harbors, and movements in the harbors themselves, slow, difficult, 
and dangerous, through the instrumentality of/.W/zHV/ffr, or torpedoes, which 
explode on contact, or by concussion, or otherwise. But as these are stationary, 
non-intelligent, and more or less easily removed or avoided by the ingenious 
devices that have been invented, and witli which \yar vessels are provided, and, 
therefore a temporary and imperfect defense only, they should be supplemented ' 
for their own preservation and also for the destruction of an enemy who may 
undertake to remove or avoid them, by a torpedo which combines the qualities 

of being movable, cosWy fiortable, invisible to an enemy, imlestructible by shot 
or s\\e\\, ccrtaitt of operation, wliicii can be projected from a long range with a 
speed equal to or greater than that of a steam war vessel, whose movements 
throughout its entire course can be intcHigently controlled at wiil from a place’ 
of comparative safety, and which explodes at the will of its operator at the 
point below the armor of a sliip of war where its discharge wilt produce the 
most destructive consequences. It should also be so cheap and so easily 
handled, as compared witli tlie cost and tlie vast weight of heavy ordnance, 
that it may be multiplied indefinitely, at an economy of time and money, and a 
proportionate increase of offensive and defensive power. 

4 . Elements of Weakness—Instances. 

Tlie fixed-mine torpedo, as its name implies, is a mine or magaicine of 
powder or other explosive, which is fixed or ancliored in the channel of a 
river, or in a harbor, the object being to e.xplode it by the war vessel striking it 
or its attachments, or by means of an electric current from the shore when the 
vessel passes over it. The fact that this form of torpedo and its application to 
harbor defense, have stimulated inventors and military and naval officers to 
expend great labor and study in more or less successful efforts to discover some 
practical appliances for protecting and defending or for removing, overcoming, 
or destroying it, proves its genuine worth. 

The weak or defective points of torpedoes of this kind are as follows : (i.) 
They are liable to be moved out of position, and their electric cables and other 
attacliments disarranged by the force of currents or heavy seas, this being 

mines, which may be exploded after the launch has retired to a place of safety, 
•and the concussion thus caused will e.xplode all other fixed mines within a 
radius of from 50 to too feet (according to the power of the charge exploded), 
and open an unprotected roadway of from 100 to 200 feet in width, through 
which the largest ironclad can steam in perfect safety. Of course a channel 
thus cleared becomes an open and safe roadway for the hostile fleet that may 
follow in the track of the pioneer vessel, since other mines cannot be put in 
position to replace those destroyed soon enough to-fie of use. 

Surface Torpedoes, that is to say, those which travel on the surface of the 
water, arc of very little use, no matter how completely they may be under 
control, since bjr the interposition of rafts, cables, spars, etc., an enemy can 
prevent them from reaching their vessel. They can also be easily destroyed; 

one shot- from a.Gatling or a Hotchkiss gun, striking such a torpedo; being 
•sufficient, to disarrange its machinery or to sink it. Moreover, even if it 
■exploded close to an armored 'ship, the explosion being on the surface, 
at the point where its armor affords protection, any damage the surlhce tor¬ 
pedo would inflict would necessarily be comparatively slight. 

The Sclf-Propelliiig Torpedo, or the torpedo which contains within itself 
its propelling power, whether it be gas or compressed air, is uncertain in its 
movements, and its motive power being limited in quantity is gradually but 
inevitably e.xhausted, and the torpedo becomes inoperative, inert, and ceases to 
move. This is self-evident, since, as the power is applied, the stock of gas or 
compressed air on board constantly grows less, and the torpedo generally 

slows down as it approaches an enemy, thereby presenting a good mark for his 
guns and being easily put liors de combat. Moreover, practical tests and trials 
of such torpedoes have shown that they are often. even more dangerous to 

steadily decrease from the time of its departure till the critical moment when 
both are most essential; and it must be stored on the deck or other exposed 
parts of a vessel, and is, therefore, a constant and menacing danger to a crew 
and ship in time of action. Finally, the effective range of the Whitehead Tor¬ 
pedo is only.about i,Soo feet, and for this reason alone, even if there were no 
other, is practically useless. : . ,. • • • 

‘ •' a the Sims-Edison electric (FISH) Torpedo. • •, . 

.Itf the Sims-Edison Electric Torpedo, all the requisite elements df strength, 
convenience, and efficiency are united that have been above shown to be essential. 

and all the defects and weaknesses are remedied so completely that, in its own 
sphere and within the scope that is claimed for it, it meets every requirement, 
whiie if associated with a reliable and effective fixed mine torpedo as an aux¬ 
iliary, it forms a perfect system of harbor and coast defense, impregnable by 
any means that military and naval science have been able to devise. 

The purpose of this pamphlet is to invite attention to this powerful offensive 
and defensive weapon of submarine warfare, and especially to the conclusive 
evidence that is appended hereto, consisting of the official reports of the Board 
of Engineers and others of the United States Army, establishing the facts that 
it embraces the greatest, most important and most valuable discoveries and 
improvements yet devised in topedoes, and that it forms the most powerful and 
efficient instrument in existence for offensive warfare at sea, and for both 
offense and defense in the protection of coasts and harbors. 


The Sims-Edison Electric Torpedo from its shape and its facility of move¬ 
ment under water in every desired direction, popularly known as the Fish-torpedo, 
is a submarine boat with a cylindrical hull of copper and conical ends, either z8 
feet long by i8 inches in diameter for one mile service, or 28 feet long by 21 
inches in diameter, for two-mile service, made in four parts or sections united 
by means of lock-joints, and supplied with a screw propeller and rudder. 

The hull is supported at a submerged depth by an indestructible float,- 
which is attached to the hull by an upright steel stanchion. Placed fore and 
aft on the hull arc two rods for showing signal-flags, balls or lights, which rods 
are hinged at the base with a spring-hinge so as to assume an oblique or hori¬ 
zontal position when meeting and moving under an obstruction, and to recover 
their upright position automatically when the obstruction is passed. 

Both hull and float are protected from cables, ropes or other obstructions 
by a sharp steel blade, which runs from the bow of the hull to the top of the 
float and from the stern of the float to the stern of the hull, and is set at such 
an angle as to make the torpedo dive under or cut through any obstacle. This 
device makes it possible to use the Sims-Edison Torpedo among friendly boats or 
floating logs, ropes, cables or ice, with no risk of explosion, save when desired. 
This is possible only with this torpedo. 

The Sims-Edison Torpedo is very simple and compact in its construction. 
It weighs, all told, from 3,000 to 4,000 pounds, according to the distance to be 
overcome, but no singie part or section weighs more than 800 pounds. It can 
be taken apart and put together again in less than fifteen minutes; and its 
entire construction greatly facilitates its handling, transportation, and storage 
on a vessel of war or elsewhere. Copper and brass are employed in its con¬ 
struction, to avoid the rust and corrosion that would soon render a torpedo 
. made of iron or steel useless, even jf the iron is gaivanized—-steel being even 
more perishable from this cause than iron. 

• The power by which this torpedo is propelled, guided and exploded is 
electricity, generated by a dynamo-electric machine on shore or on shipboard, 
and therefore is practically inexhaustible.. ' Vais torpedo is the only one that is 
driven by a power not within itself. 

The bow section of this torpedo contains the explosive charge, which 
varies from 250 to 400 pounds of dynamite, according to the size of the 

The electric current produced by the dynamo machine is conveyed to the 
torpedo by a cable stored in one of its sections, which is paid out as the torpedo 
proceeds on its errand. The electric current is constant in supply, unlimited 
in amount, and at all times under the complete control of the operator by 
means of a key-board. The operator from his station on shore or on ship- 
hoard, can, at will, start, stop, or steer the torpedo to port or starboard, and 
expldde the charge, which can also be arranged to explode by contact, if 
desired; and ho receives notice when the hull or blade meet with any obstruc¬ 
tion, together with the magnitude of the same, thus making sure of the proper 
moment for explosion. 

For Land Fortifications, it is proposed to have the Sims-Edison Torpedo 
anchored by means of electric cables, at different parts of ports, or in bomb¬ 
proof canals with lock-gates, where aiso wili be placed the steam-engine, boiler, 
dynamo machine, and the operators for workingthem. The operators will receive 
orders by telephone or otherwise from sentinels, pilots, or watchmen stationed 
for that purpose. In such cases the operators and the machinery for generat¬ 
ing and transmitting the power, will at all times be in a place of safety, and 
the torpedo'and its appurtenances under complete control. 

For Naval Offensive Purposes, it is proposed to have one or more of the 
Sims-Edison Torpedoes travel’, with its own power, about 100 feet ahead of or 
off from the side of a steam war-vessel, attached to the vessel by electric snap- • 
cables, the pilot of the vessel having control of the movements of the torpedo. 
By this arrangement the Sims-Edison Torpedo may travel any required distance 
at sea, and when wanted for action, it may be released and sent off at once and 
under full speed, the all-important moments of time that would be con¬ 

sumed in launching from a vessel when preparing for. action or when under fire. 
This manoeuvre is possible only with the Sims-Edison Torpedo, for the reason 
that its propelling power is not within itself but with the operator, and, being 
without limit as to quantity, is never exhausted. Whereas, all other torpedoes 
contain their propelling power within themselves, which, being limited in 
amount is soon expended, and must be launched while a vessel is in front of an 
enemy at short range, and when preparing for action or under fire. In this 
connection, it should also be remarked, that while the Sims-Edison Torpedo can 
be used for any war-vessel, it is in the highest degree desirable that naval vessels 
should be built, whose principal armament should consist of Sims-Edison Torpe¬ 
does, and which should have sufficient speed to overtake the heavy iron-dads and 
then easily destroy them with the torpedo. Such a vessel would also form a 

■ IS 

valuable agency for clearing a channel ,or coast line of fixed mine torpedoes, 
. by the process known as countermining. * 


The special points of superiority of the Sims-Edison Torpedo over all 
others, as regards the elements of potency, efficiency, convenience, and thor¬ 
ough adiiptability to bfTensive and defensive naval warfare, may be briefly sum¬ 
marized as follows : 

It is movable, by a practically inexhaustible power, generated outside of 
itself, and transmitted from a place of comparative safety on the shore or on 

Its movements are directed and controlled, whether ahead, to port or star¬ 
board, in the direction of the altered or changing course of an enemy, or on its 
return when desired, by the intelligent will of an operator in a place of com¬ 
parative safety—nothing being left to blind cliance. 

Its movement to tiic point required cannot be stopped by any obstructions, 
since it may be deflected to the right or left, or it can be made to return at will, 
while by its own automatic action it clears the way of cables, chains, spars or 
rafts, and the like, or passes under the obstructing object. 

It is portable, light in weight, convenient in its dimensions; and being in 
four small sections is easily stored on land or on shipboard; and it can be taken 
apart and put together in a few minutes. 

Being entirely submerged, its hull, which carries the explosive charge, can¬ 
not be reached by shot or shell, and its float, besides being of material capable 
of resisting shot or shell, opposes so minute a point to any missile as to be 
almost invisible and practically secure from it, while it is also greatly protected 
when in motion by the water that dashes over it, which serves to hide it from 
sight and causes missiles aimed at it to glance harmlessly aside. Yet if shot or 
shell should penetrate the float, it is indestructible, being filled with a buoyant 
substance which is impervious to water and will not sink even if the outer metal¬ 
lic shell is partially destroyed. 

It renders fixed mine torpedoes inoperative and clears the way of them for 
a fleet, when they are planted in an enemy’s harbor ; .ind it protects and defends 
or replaces them, when in a harbor to be defended against an enemy. 

It vastly increases the effective armament of a vessel of war by a new and 


most destructive appliance, by whose agency a small, swift, sea-going launch 
may easily cope with and disable or annihilate the most powerful iron-clad. 

It explodes at the precise point, underneath the surface of the water and 
below the armor of a vessel of war, where its discharge will be productive of 
the most destructive results. 

Its “ official" speed is greater, continuously, than that of any other form 
of torpedo, and steadily increases instead of steadily diminishing as it nears 
the vessel of an enemy. 

Its course cannot be permanently di vertedby tides or currents, being always 
under the full control of the operator throughout its entire range of two miles. 

It.can be stored on shipboard, below deck, comparatively out of the reach 
of an enemy’s guns ; and as the “ charge " may be put in at the moment, only 
when. required, the vessel and crew run no greater risk of danger from its 
explosion than from the explosion of the " magazine " of the vessel. 

8 . Tests by Officers of u. S. Army; 

As early as 1879, the Sims Torpedo had engaged the serious attention and 
study of the most distinguished military men in the United States, who were 
gravely apprehensive of the dangers incident upon the exposed and defenseless 
condition of our coasts, harbors, and large seaboard cities, with the result that 
it recommended itself to. them by its extraordinary potency and indestructi¬ 
bility, the inexhaustibleness of its motive power, and the perfect control of its 
movements by an operator in a distant place of safety, and also by its adapt¬ 
ability to a wide range of application in military and naval operations. It was 
seen tliat this torpedo combined practical elements of power and efficiency, 
especially for coast and harbor defenses, that had been hitherto vainly sought 
for in any other torpedo appliance or association of appliances that military 
genius, or scientific and engineering skill had been able to devise. 

In.the course of the spring and summer of 1880, a number of studies of 
the working of the Sims (fish) Torpedo were made by officers of the Battalion 
of Engineers of the United States Army, stationed at Willet’s Point, New 
York, under the immediate personal supervision and direction of Gen. Henry 
L. Abbot, U. S. A., assisted by the inventor, Mr. W. S. Sims, with the par¬ 
ticular object in view, of perfecting some minor details having reference to the 
practical application of the torpedo in war. . These practical studies were made 
in connection with an experimental Torpedo Boat made for the United States 
Government and paid for by it. ' ; 

These studies, and the experiments that were conducted in connection 
with them, so clearly revealed the efficiency of the Sims Torpedo, that later, 
in the same.year, on September 22 and 24, and a month later, on October 28, 
three official runs of it were made, respectively, by eleven and ten officers of 
the Battalion of Engineers, under the supervision and direction of General 
Abbot, Lieut.-Col. of Engineers, Brv’t Brig.-Gen. U. S. A., commanding the 
School of Application. The " official" reports of these runs, with the accom¬ 
panying charts and descriptions, are appended as follows: i . 

The Run was made and the records taken by eleven otHcers of th 
Battalion of Engineers, assisted by four non-commissioned oflicers an< 
twelve privates. 

Stations established at 15 seconds apart by ciironometer, and triangula- 
tion at distant station regulated through telephone. 

Triangulations made by four officers at each theodolite (base-line 1255.! 
feet)—one following the fish with telescope, two reading the verniers, and on< 


Sims’ Electric (Fish) Torpedo, 

Made at milet's Peint. K. V. //.. rii OtMer s8, iSSo. 

The Run was made and the records taken by ten officers of the Battalion 
higineers, assisted by four non-commissioned officers and twelve privates. 
Stations established at 15 seconds apart by chronometer, and triangii- 
)n at distant station regulated through telephone. 

Tuiangulations made by four officers at each theodolite (base-line 1255.8 
)—one following the fish with telescope, two reading the verniers, and one 

Strength of Electrical Current determined by an Obach galvan- 
;ter, read by an officer. 

Revolutions of Dynamo Machine automatically recorded on chrono- 


Times of Steering electrically recorded on chronograph by an officer— 
wn by the heavy lines on the plot of the run. 

Fish-Torpedo piloted by an officer and steered by the inventor. 

9, A Further Crucial Test by U. S. officers. 

Ill further cxemplificiition of the efficiency of the Sims Torpedo, and in 
especial to test the indestructibility of its Hoat, the power of the torpedo itself 
to resist concussion, and its ability to safely withstand artillery fire, two years 
later than tlie tests just described, General Abbot subjected it to an addi¬ 
tional series of tests, on September 19, October 26 and November 2, 1882, of 
wliicli tlie following is his official report; 


Sims Electric Torpedo 

Made at WiUct's Point, N. Y. 11, by Brev. Brig-Gen. Henry L. Abbot. 


Wii.i.KT's Point, New York, > 

December 10, 1882. ) 

. Mr. W. S. Sims, Netv York City. 

Dear Sir: On September 19, 1882, the lloat of your torpedo, made in 
1881, was anchored in front of a .sa-pdr. howitzer. It was fired at five times at 
a range of 370 yards, and eight times at a range of 186 y.irds, with double- 
shotted canister charges, each containing ninety-six balls. The accompanying 
photogiapli illustrates tlie severity of the test, [See page 22). , , 

Five large lioles were made by this firing. Tlie float was then towed nbout 
a mile by a steani-launch at a rate of five miles per hour. On its return it had 
lost only 150 pounds of its 400 pounds buoyancy, and was perfectly serviceable 
for use in an attack. . . 

On October 26, 1882, experiments were made to test its power of resisting 
concussion. Tlie mast of a schooner, 56 feet long, and 17 inches in diameter at 
the foot and 13 inclics at the head, was aiicliored by two 500-pound anchors 
one at eacli end. Your torpedo was driven against this obstruction twice, once 
moving at rate of 7.5 miles per hour, and once at 9.1 miles per hour. 
Neither sliock did any damage. The torpedo in both cases dived under_ the 
log and continued its course uninjured. . 

I regard these tests as sufficient to prove that the torpedo is quite sale 
against any artillery fire which it would encounter in actual service, and that no 
temporary protection, in the shape of spars or logs moored around a vessel, 
would be of any value against an attack. Probably a deep iron netting might 
check its course, but the explosion of its charge—250 pounds of explosive gela¬ 
tine, or of dynamite—would be sure to open a route for a second torpedo fol¬ 
lowing in wake of the first. 

Its steering properties are sufficiently shown by Plate XLIX. of my report 
to our Board of Engineers. 

Very respectfully yours, 


Lieni. Col. of Engineers, ■ 

Brvt. Brig-General U. S. A. 
Conunandtng School of Application. 

[See opposite page.] 


Still other tests of the Sims Torpedo were made at Willet's Point, by Gen. 
Abbot, on June l6, 1884, the object being to try its steering power and to 
exhibit the facility with which, at the will of the operator, it could be made to 
describe a circle, to pursue any desired irregular course, to reverse its course, 
or to cause it to return to its starting' point. These trials fully demonstrated 
the ease and accuracy with wliich the torpedo could be made to strike any de¬ 
sired object, and at the same time pass under any obstruction. On the above date 
Gen. Abbot caused a spar, 57 feet long and 17 inches diameter, to be anchored 
off Willet's Point, a quarter of a mile from tlie torpedo station. On the first trial 
the torpedo struck the spar squarely in the middle, the point aimed at, and 
then dived under it. The course of the torpedo in this trial is shown in Dia¬ 
gram at p. 23, On the second trial the torpedo struck tlie spar within eighteen 
inches of the same spot, after which it passed under tlie obstruction and con¬ 
tinued on its way. Its course on this trial is shown in Diagram at p. 23. 

10. Opinions of Gens. M’Clellan and Abbot, 

In this connection the following letters from the late Gen. George B. Mc¬ 
Clellan and Gen. H. L. Abbot have a public interest: 

New York, November 22, 1882. 

To the President of the Sims Eiectrie {Fish) Torpedo Co.; . 

Dear Sir— In reply to your inquiry, I take great pleasure in stating that 
I regard Gen. H. L. Abbot, U. S. Engineer, as the highest authority in this 
country on the subject of torpedoes. His high ability, scientific acquirements, 
and long experience in charge of the army torpedo station, pre-eminently 
qualify him to decide upon the merits of any preferred system. His perfect 
integrity of character precludes the possibility of his giving any other than a 
thoroughly honest opinion. 

Let me add,, without pretending to be thoroughly conversant with the 
subject, I am strongly impressed by the conviction that the Sims’ is the best of 
the movable torpedoes yet invented. 

Very truly yours, 

(Signed) geo. B. McCLELLAN, 

Maj.-Gen. U. S. Army. 

(Extracts from Letter of December is, 1882.) 

The dangerous range of your torpedo. A charge of 250 pounds of dyna¬ 
mite. submerged at the depth requisite to develop its maximum intensity, would 
disrupt a modern double cellular iron war ship, at a range of 25 feet, a 400- 
pound charge would do the same at 31 feet, and tlie effect on the machinery, 
especially if in action, would be dangerous in the extreme The explosion at a 
distance .of 50 to 75 feet would not disrupt the hull. The effect on the nia- 
chinery, if in action, is not so certain. I know of no data which would 
decide it. 

Very respectfully yours, 

(Signed) HENRY L. ABBOT. 

Lteut Col, of Engineers, Dvt. Brig,-Gen, U, S. A,, 

. Com'eCg School of Application, 


The memorial was then returned to the Secretary of War, by the Chief of 
Engineers, Brig, and Bvt. Major-General A. G. Wright, with the above indorse¬ 
ments, and also with an indorsement inviting the attention of the Secretary to 
the views expressed by the Board of Engineers, above given, and emphatically 
adding in which I concur. And thereupon the Secretary forwarded the peti¬ 
tion, with the indorsements thereon, to the Appropriation Committee of each 
House of Congress, accompanied by the following letter: 

War Department, 1 
Washington, D. C, Feb. 2, 1883. ( 

Sir—I have the honor to invite your attention to the inclosed copy of a 
• communication from Oscar Marsliall, and the indorsements thereon of the 
Board of Engineers, in which it is recommended that an appropriation of 
$200,000 at least should be made for the construction of controllable fish-tor¬ 
pedoes, unhampered by conditions as to time of disbursement. 

I believe that the particular kind of torpedo mentioned in the within com¬ 
munication is considered by engineer officers to possess great excellence but 
if Congress should see fit, as l urgently recommend, to make an appropriation 
for this geneial purpose, I would prefer that the department be not restricted 
by the form of the appropriation to any particular kind of torpedo, so that if a 
better one should be found before the disbursement of the appropriation, it 
could be adopted. ‘ . , • t 

Of the great necessity for adequate provision for defense ofthis character I 
think there can be no doubt. 

Very respectfully, your obedient servant 
(Signed) ROBT. T. LINCOLN, 

To Secretary of War. 

Hon. Wm. B. Allison, 

Chairman Com. on Appropriation, 

U. S. Senate. 

Since the presentation of the above petition and its reference by the 
Secretary of War to the Appropriation Committees of Congress, that body has 
appropriated $187,500 to the purchase and construction of Sims’Torpedoes, 
and in conformity therewith, eiglit torpedoes have been contracted for by the 
Government, making a total of ten, that up to this date (January i, 1886) have 
been contracted for by the U. S. Government and have either been fiirnishep 

The Sims-Edison Torpedo Company of New York, which is the owner of the 
important invention that has been described in the foregoing pages, has secured 
patents for the invention from every European and American Government, and 
is now prepared to negotiate for the sale of its torpedo or for certain of its 
patent rights. The latest improved machinery which the company has made 
or is now making, to fill orders received from the U. S. Government, has estab¬ 
lished the fact that the speed of the Sims-Edison Torpedo will be materially 
increased and will probably reach several miles an hour in excess of its best 
records in the past. 

The company is now prepared to receive and fill orders, and to make con¬ 
tracts to manufacture and supply the Sims-Edison Electric Torpedo Boats 
complete, of the most approved pattern, with the latest improvements and best 
electrical apparatus, and capable of running one, two or more miles. 


It has made contracts with the Edison Machine Works of New York (the 
largest shop in the world for the manufacture of electrical machinery), and with 
the Armington & Sims Engine Company of Providence, R. I. (also the largest 
shop in the world for the manufactnre of the special class of engine which the 
.electrical machinery requires), and with other large firms for the manufacture 
of boilers, etc., that enable it to insure to its customers the lowest price for the 
particular machinery to fully equip the shore end of the system. 

Estimates will be given for stations for running any number of boats at 
any one time, also for the supply of war materials, electrical machinery. 

cables, etc., etc. 


iLJ • 

United Telephone Company, Ltd. 

This folder contains printed material Issued by the United Telephone Company, 
Ltd. Organized in London in 1880, this company brought together the patents of 
Edison and Bell through the merger of their respective London telephone companies 
— the Edison Telephone Company of London, Ltd. and the Telephone Company, 

The following item has been filmed: "General Information for Subscribers .. 

36. Coleman Street . 
London, e.c. 

She Sijlejjhenij 



Soltdon fethiiDfiL' .Sinfioti!). 

|!i[t)Uiircial Oj.^’cIinnjjDji. 

iivrupooL, GLAsnow, Bjuminoiiam, Siimfi 
Lcitii, Sixi>i:ri.anii, Oueenock, Lelpab 

c/.ain„an, JAMES BE/VND, Esq. 

Jiejnity-CAainntni, TIio Eight Hon. E. V. BOUVEEIE. 


S. FOUBES, E«q. 
)h. CJOUBAUl). 



■q wi m™“swnEV'™'‘’ 

LIEUT..COr,.'c. eI weSuei!, u e 


MEs.qis. ROUAItTS, LUliROOK & Co. 


, riacB, WAfEimousE^A "co., 

Mebsus. ASIIDRST, morris, CRISP & Co 



lief Omoe: 36, COLEMAN STREET, LONDON, E.C. 

Tlie subscription will secure to each the use of apparatus suited to 
the situation, or to the particular requirements of the subscriber. The 
patents possessed or worked by the Company include the use of 
the best appliances. One of the advantages of the system is, that, 
like the water or gas, which are laid on to a dwelling, the Telephone 
will be fixed, and all the facilities of the newest inventions provided, 
for an annual rental or subscription, which can be terminated and 
resumed with reasonable notice. 


For domestic purposes Exchanges can bo connected with cab¬ 
stands, telegraph-offices, police-stations, fire-station's, shops, &c. 

In order that Telephones for exclusive private use, between house 
and house, may be within the reach of the public at the lowest cost 
compatible with good maintenance, the Telephone Company will 
provide and maintain speaking-apparatus within a radius of one mile 
of all their Exchanges at a low annual rental, with a slight increase 
for each additional mile of sucli radius. 

This increased charge will be reduced whenever new Excluinges 
are opened at a diminished mileage distance. 

The principle the Telephone Company propose to adopt in the 
extension of their system, is, to attract the sympathies, interest, and co¬ 
operation of the public in each locality where their appliances arc 
used, and to enlist the assistance of local influence in the management. 

Under the headings (see page 6) “Subscriptions to Exchanges,” 
" Rentals of Private Stations,” “ Rentals of Private Lines for Tele¬ 
phones,” is described the manner in which the Company propose to 
charge'the public. The first refers to those stations which are con¬ 
nected with Exchange centres, by which tlic subscriber can converse 
with all other stations connected with the same centre. Under the 
second and third are scales of charges for Private Lines, framed to 
extend to the public the use of the Telephone at a minimum cost. 

The Company, in restricting their operations to the letting of 
apparatus within the United Kingdom, will secure to their customers 
the advantage of,the use of the newest and best forms of apparatus, and 
further, save them all trouble as to the setting up, the maintenance, 
and the removal of the same. 



■ Each annual subscription for a Station, in connection with a 
Telephone Exchange, is ,{^20, within a radius of one miie from the 
exchange; tlie subscription, beyond that distance, to be the subject of 
spcciai agreement in each case. 

At tills charge, each subscriber will be provided with the following 
apparatus, and one such set constitutes a Station ;— 

I Transmitting Telephone. ^ Separately 

I Receiving Telephone. > or 

I Bell and push, or other means of calling. J combined. 

I Battery (if necessary). 

Any reasonable additions or alterations to tlie above, rendered- 
necessary for efliciency of hearing, by the abnormal condition of locality 
or by the physical necessities of the subscriber, will be made without 
altering the subscription. • 

Additional apparatus,within the Station and on the same line, above 
those required to establish the station, will be charged for at additional 
rentals, similar to those published on page 6 for private lines. 

Additional Stations on the same line, or on separate lines, com¬ 
municating with the same exchange, will be charged, to the same sub¬ 
scriber for his bona fide use, at reduced rates, to bo agreed on in each 

Special arrangements will bo entered into, when it is desired that 
one station should bo made to servo two or more subscribers who arc 
neighbours. In special cases the Company will not object to placing 
two subscribers on the same wire, at a reduction of rental to each of 
25 per cent. 

Subscribers will be required to pay for the cost of alterations. 



For domestic purposes Exchanges can bo connected with cab- • 
stands, telegraph-offices, police-stations, fire-station’s, shops, &c. 

In order that Telephones for exclusive private use, between house 
and house, may be within the roach of the public at the lowest cost 
compatible with good maintenance, the Telephone Company will 
provide and maintain speaking-apparatus within a radius of one mile 
of all their Exchanges at a low annual rental, with a slight increase 
for each additional mile of such radius. 

This increased charge will be reduced whenever new Exchanges 
are opened at a diminished mileage distance. 

The principle the Telephone Company propose to adopt in the 
extension of their system, is, to attract the sympathies, interest, and co¬ 
operation of the public in each locality where their appliances are 
used, and to enlist the assistance of local influence in the management. 

Under the headings (see page 6) “Subscriptions to Exchanges,” 
“ Rentals of Private Stations,” " Rentals of Private Lines for Tele¬ 
phones,” is described the manner in which the Company propose to 
charge'the public. The first refers to those stations which are con¬ 
nected with Exchange centres, by which the subscriber can converse 
with all other stations connected with the same centre. Under the 
second and third are scales of charges for Private Lines, framed to 
extend to the public the use of the Telephone at a minimum cost. 

The Company, in restricting their operations to the letting of 
apparatus within the United Kingdom, will secure to their customers 
the advantage of the use of the newest and best forms of apparatus, and 
further, save them all trouble as to the setting up, the maintenance, 
and the removal of the same. 

^ -^- ^ 


Each annual subscription for a Station, in connection with a 
Telephone Exchange, is 20, within a radius of one mile from the 
exchange; the subscription, beyond that distance, to be the subject of 
special agreement in each case. 

At this charge, each subscriber will be provided with the following 
apparatus, and one such set constitutes a Station:— 

I Transmitting Telephone. 

I Receiving Telephone. 
l Bell and push, or other means of calling 
I Battery (if necessary). 

Any reasonable additions or alterations to the above, rendered- 
necessary for efficiency of hearing, by the abnormal condition of locality 
or by the physical necessities of the subscriber, will be made without 
altering the subscription. • 

Additional apparatus,within the Stationan^ on the same line, above 
those required to establish the station, will be charged for at additional 
rentals, similar to those published on page 6 for private lines. 

Additional Stations on the same line, or on separate lines, com¬ 
municating with the same exchange, will be charged, to the same sub¬ 
scriber for his bonfi fide use, at reduced rates, to be agreed on in each 

( Separately 

Special arrangements will be entered into, when it is desired that 
one station should be made to serve two or more subscribers wlm are 
neighbours. In special cases the Company will not object to placing 
two subscribers on the same wire, at a reduction of rental to each of 
25 per cent. 

Subscribers will be required to pay for the cost of alterations. 


The iinnual rciit.-il for priviitc Stations (s calculated on the actual 
cost of maintenance, and as this wiil depend on the distance of the 
Station from an Exchange Centre, 

Tile charge wiii be:— , 

At or within a radius of one miio from an Exchange ... £3 

For each additional mile. 10 per cent, in addition. 

For this charge will be provided the same set of apparatus as 
constitutes an Exchange Station. 

For separate additional parts of the apparatus the charge will 
be at proportionate rates. 

Wiicn a iargo number of stations are rented by one person or 
corporation, for their own purposes, a percentage wiil be taken off the 
above rates, which will be agreed on in each case. 

The private Stations will require the use of private lines, for which 
the annual charge will be 

/« Toivn, at or loithin a radius of one mite of an Exchanse. 

Overground ... . £z. £3. los. £6.' 

Lines beyond tlio .above radius, lines on special poles, or lilies 
presenting special construction or waylcavc didiculty, to be subject 

An agreement must be signed, in all cases, before extensions arc 
commenced, and a deposit equal to half a quarter of the rental, be jl 

paid at the same time, which will be returned when the subscription K 

or rental ceases. -I 

Each agreement will provide for a minimum duration ' of rental | 

of instruments or station apparatus for one year, and of that for i 

lines for throe years. ■ § 

The Company reserves to itself the right to decline undertaking i 

any Telephone Lines for which they may receive application. • I 

All rentals to commence from the quarter or half-quarter day 1 

following the opening of the line or station, and they will be payable j| 

half-yearly thenceforward, on the 30th June and 3Jst December in !i 
each year. ' ■ L « 

Merchants, solicitors, bankers, managers of companies, and 
others acquainted with the ramifications of large business operations 
[ are aware that the Telephone does not enable them to dispense on 
all occasions with the necessity for personal conference. Much 
correspondence, and many telegrams and messages, however 
.It mind communication is ever 

the r in various phrts of 

H Ihe class of business in 

he can ■rf'T nnd secret communication increases 

. the capacity for the transaction of affairs. 

marJIl'" metropolitan produce 

dur i^rh . “f ti'c Telephone Exchange .system 

during the past year has demonstrated the fact that business can be 
the W time,thiin was possible previous to 

the systematic development of telephonic Exchanges. 

^ _ The union of tlie Company's system w-ith the Docks .already in 
existence, and the Exclmnim™^___, . . . ^ . 

existence, and the Exchange centres 
is evidence to tlie shipping interesti 

Opened or about to be opened, 
s that the telephone partakes 

nnf cn f 1.1 , ^ liucrLbcs mat tiic telephone partakes 

not so much of the character of a luxury, as of that of an indispen- 

Lills t'wni^'ir 

ill afford facilities to merchants and shippers for prompt 
communication between the city and the bonded and other wharves 

able •business connected with perish¬ 

able goods, such as market-garden produce, fish, meat, and general 

prSred Z m f “‘“i^'i^'-ments, the Company are 

prepared to make arrangements for connecting any two stations in 

ho 1. o “-•<=»m'ges will be open until a late 

Hour of the night, or oven during the whole twenty-four hours 

with local centres, shops, &c. Work, which would involve wear,, 
and expensive travel, will be transacted at home. The morning's 
post may be opened in the city, letters read through the telephone, 
and replies dictated in the same manner,.thus effecting a .saving of 
valuable time, and improving tlie conditions of life ncces-sarily 
imposed on a man of business. 

Kven in tlio case of those who are not much engaged in affairs, or 
who from physical or otlier causes are confined to the house, the tele¬ 
phone by economising time creates the opportunity for repose. It is 
needless to dwell on the value to tlio heads of families of the power of 
oral communication witli the medical man, with tradesmen, or with 
co-operative stores; and it is equally needless to enlarge on the 
manifold services whicli tlio telephone is able to render to other 
classes of the community. 

The benefit conferred by tlie power of immediate access to 
distant correspondents cannot be said to be purchased dearly at a 
cost little exceeding a shilling a day. 




AdaniTV Tt n . ' 17 & 118, liOndenhall-strect 

Adam, .lohn & James, S Co. , 1, p,„lding-]nno 

A4««s,IVfc.&Co. ..20, Bishop.,^Uo-stroet 

uTT’nr • T . 2, Biilitor-avenne, Billiior-stieet 

Atorul “7” - 2, St. Michael's House, Cornhill 

Adicrtisers Wiation, Limited ... 07, St. Paul’s Churchyard 

ASIauk' . .fT' 

„ ? . , „ „. oo, Nicliolas-lano 

Agricolca Fire Insurance Co. of 

.'15, 10 & 47, Comhill 

Acsaiiders&Oo.24, Lombard-strect 

Almndra (Newport) Dock Co. ... Giacechiirch-strcet 


Allen* Danbury . Plough-court, Lombard-.,treet 

-A banco Marine Insiiraiice Co. ... Caiiel-court 

ti ^ . •'■’0- Jliok-Inno 

Alston, Daimltoii & Co.oo Miuciii.^.laim 

. McQueen Wia-stredt 

Amcriciiii Iiiveatmenfc Trust Co. (U, 11. 

Itwo, Sec.).. Tlirognioi toii-avoiiiio 

Analysts Society of Public . 79, Q t. Towei-street 

Anchor Line of .Steamers, The ... 19, Leadenhall-slrect 

.< n erson. A., & Co.. gg^ Tlirogmorton-strcet 

Anderson, Anderson & Co.a, Fenchiiroli-nvonue 

Anderson Brothers . 10, Phil,x,t-Iaue 

Alldemon, ILD.,& Co. ... ... oj, 

Audemon(J^ph)&Soii . Hibernia Chambem 

AnderMn, Mcber&Sniitli . !), Mincing-lane 

Andrade, Joseph .40, Barbican 

uglo-SivissCondcnsodMilkCo. ... 10, Mark-lane 
nglo-UniversalBank ’. Colcman-street House 

Anning & Oobb . 

Arbuthnot, '\V. lb, & Co .. 

Avgonti Bros.. 

Argics, Band, Bniloy & Co . 

Armjrtngo, Foroy .. . 

Asluitst, Morris, Crisp & Co . 

Atkinson, Geo., & Co. 

Anstinlinn Lloyds . 

Australian & Now Zoalnnd Undcr- 

11, Limo-stroot 
,82, Great St. Helen's 

1, Austin Friars 

80, Graeoobnroh-stroot 
8, Coptliall-buildings 
0, Old Jewry 
GO, Aldeingato-strcct 

2, St. llicliaors House, Ctirnliill 

Bailey, Daniel. 

Bniloy, Parker & Wellesley . 

Baillio, J. B. 

Ditto . 

Balinc, Charles, & Co. 

Baltic, The ... ..' 

Banbury and Oheltenliam Direct Bail- 

way Company . 

Barber Bros. 

Barlco, E. H., & Burgess . 

Barnett Bros. 

Barnett, W. H., & Co. 

Bath, Henry, & Sons. 

Baxters & Co. 

Bayloy, James A. ■. 

Bayley, J. C., & Co. 

Beaclioroft & Gordon. 

Benton Bros.. 

Bell, Alexander & Co. 

Boll, J. T., & Co. 

Bell, John . 

Bellairs, W. G., & Co. ' ... 

Bennett, Pieroy & Co.. 

Bondrin, Tlios. . 

Botesford & Co. . 

Bergbeim, J. S., & Co. 

10, Drapors’-gardens 
23, Bood-lnno 

St. llnrgni-et’s House, Victoria-street 
lii, Old Bond-street 
10 a, Colomnn-street 

8, Drnpers’-gardens 
82, Fencliurcli-strcot 

9, Finabury-cirens 

10, Great St. Helen's 
28, Tlirendneedle-street 
Gresham House 

11, Victoria-street 
120, Cannon-street 

1, Queen Victorin-street 
4, 'I'okenhouse-yard 

2, Great Winchester-street 
37, .Scething-lano 

2, Lower Thnmes-street 
118 a, Soutbwark-street 
8, Drapers'-gai-dens 
20, Tooloy-streot 
Castle and Falcon Hotel 
St. Olavo’s Wliarf, Sontliwark 
18, Lani'cnco Ponhtnoy-hill 

F ‘‘ Bcrlin-Cologno ” Firo Insuranco Com. 

pany of Berlin . 

Bovan, Harris & Gnn'ord' . 

Boris, Biissoli & Co. 

Birch & Archer . 

Bird,O.E. . 

Birkbcck Bonk . 

Bishop, W. H. 

Blades, East & Blades. 

Blnjunvon.Iron Co. 

Blockcy, A., Greig & Co .■ 

Bolling & Lowe (formcrlov AVm. Bird 

& Co.) . 

Boot, A,, & Son . 

BosaiKpiet, Curtis & Co. 

Boundy, W. . 

Boursot, A., & Co. 

Boiistead, E., & Co. 

Boiitcher, ITortimoro & Co. 

Boiiverio, the Right Hoii. E. B. 

Bower, Edward, & Co . 

Bowies, George . 

Bowley & Bristow . 

Bowring, Jamieson, & Co. . 

Bradshaw, John, & Co. 

Brand, llohert, & Co. ' 

Brandeis, Goldschmidt & Co. j 

Brassey, Tliomns, Jl.P.. 

Braun, S. P., & Co. ... . ] 

Brett, Hy., & Co. o 

Brightwon & Co.. 

British Linen Company Bank ... j 

Brookes & Faith ... . o 

Brook's Wharf. '. ^ 

Brown, Bayley & Di.\on ... ... j 

Brown, Geo., & Sons. p 

Brown, Walter H., & Co. . j! 

Bruutoii, Bourko & Co. ... u 

Buchan, Patrick . ]( 

BnokfnstloighiTotnos and South Devon 

Railway Company. 

Budgett, James, & Son . 18 

48, 40 & 47, Cornhill 
117, Bishopsgato-strcct within 
8a, King Wiiiam-street 
8J, Angel-court, Throgmortou- 

4, Cliange-alley 

1, Royal Exchnnge-buildinga 
11, Aljchurcli-lano 

80, Cannon-street 
7.'!, Old Broad-street 

2, Laurence Ponntnoy-hili 
24, Old Bniloy 

28, Rood-lane 

Leadenhnll House 

0, Hart-street, J[nrk-Iano 

84, Lcadcnhall-street 

0, Leather-market, Bermondsey 

17, Moorgnto-strect 

184, Fenehurcli-strcet 

1.8, West Smithfield 

81, Lcadcnhall-street. 

7, East Indin-aVenne 
■1, Bishopegntc-street Within 

7, UiHon-coiirt, Old Broad-street 

8, Austin Frinys 

4, Gt. Qeorge-streot, Westminster I 

10, Philpot-Iano 

20 & 27, High Holborn 

8, Finch-lane j 

41, Lombard-street 

25, Miucing-lano 

Upper 'I'hnmes-strcct 

1, Queen Victoria-street 

0, Half Moon-passage, Whitechapel 

54, Leadonhall-streot 

18, Fineh-lanc 

10, Angel-court 

1, Drapors’-gardons 
18, Lanrenco Pountuey-lano 

Buoaos Ayres ond Ensenada Port Rail¬ 
way Company, Limited . 

Bnllooli, J. & G., & Co. . 

Biirohell, William . 

Burt, Bonltoa & Haywood . 

Burt, P., & Co. . . 

Buttery, Jolm, & Co. 

8, Drapora’-gardous 

18, Ponoliuroh-avonuo 

6, Broad Sanctuary, Westminster 

Cl, Cannon-street 

71, bornliill 

17, Trinity-square 

Ondiot, E. H. 

Campbell, Clias. S., & Co. (Limited) ... 

Campbell, J. Pictairn, & Co.. 

Campbell, L. A. . 

Campbell, Shearer & Co. 

Oahiion Brewery Co. 

Capel, A. J. 

Cupel (Arthur) & Co. 

Carey & Browne . 

Carlisle & Clegg . 

Ditto . 

Carr, J., & Sons 

Cnrr,J. T. ... 

Carter, H. & A. . 

Onrvill, Prunois, & Son 
Cassell, Smith & Co. ... 

Cnstell & Brown .. 

Ditto . 

Cater, J. W., Sons & Co. ...' ... 

Caudoiy, W., & Co. 

Causton, Sir Joseph, & Sons. 

Central Hews OlHoo . 

Central Wales and Carmarthen Junc¬ 
tion Eaiiway . 

Chalmers, W. B. & Co. . 

Chandler, Pixley & Co. . 

Chaplin, J. 0.... 

8, East India-avcnuo 

47, Jrarlc-luno 

2C, Groat St. Helen's 

7, Joirrcy’s-squaro 

70, Great Towei'-strcot 

ICO, St. Jolm’s-streot ‘ 

4, Royal Exchange-buildings 

1, Dnnster-conrt, Jlincing-lnno 
30, Jlincing-lnno 

2, ' Great St. Thomas Aiwstlo 
24, Grahum-streot, City-road 
14 & IS, Warwiek-strcet 
Bedford-park, Tnruhnm-gx'een 
la, Lnnrenco Ponntney-lnne 

4, Bishopsgnto-stroct 
80, Fonchurch-strcct 
83, Wnrdonr-street 
Waterloo Station 
SO, Lombnvd-sti’cet 
151, Ponchurch-stroet 
47, Eastebeap 

1, Draijora’-gnrdens 

Daahwood House, Now Broad-street 

10, Colemnu-strect. 

8, Temple-gardens, Temple 

Chubb & Sou. 


Church, Arthur H., M.A., P.O.S. 

City Carlton Club . 

City Liberal Club. 

Clark, Anstod & Co. ...' . 

Clark, Charles, & Co.. 

Clarko, H., & Co. 

Clarke, Niokolls & Coombs '. 

Clarkson & Co. . 

Clayton & Aston . 

I Clift, Prodcriok, LL.D. . 

Cohen, A. & E. .... . 

Cohen, J. U. & Co. ... . 

■Cohen, 0. & Co. 

Coles, E. 0. & Co.■ 

Colls & Sons.. 

Colinau (Clement) & Co. 

Colonial Bank. 

Colonial Company, The . 

Commercial Jlarino Assurance Com- 

I'sny - . 

Commercial Sale Rooms . 

Commercial Union Asaurnnco Co. 
Compagnio Francniso dn TSlSgi-hphe 

, do Now York . 

I Cook, James & Co. 

Cook, J. W. 

Ditto . 

Corrio & Co. ... . 

Cory Brothers & Co.. 

Cory, Lohdcn & Jackson . 

Ootesworth & Powell. 

Conbro’ & Potter 

Conbro’, Wm. 

Coulon, Berthoud & Co. . 

Council of the Corporation of Foi-oign 

Bondholders, The . 

Courtenay, J. & W. J. ..; 

Courtenay, J. Irving ...' . 

Cow, P. B., Hill & Co . ... . 

Cowes and Newport Railway Co. I 

128, Queen Yietoria-stmot 
67, St. Paul’s Churohyard 

79, Groat Tower-street 
St. Swithlu's-lane 

18a, Philpot-laue 

Windsor Chambore, Great St. Helen’s 
17, Graoeehurch-strcot 
Hackney Wick, Victoria Park 
20, Billitor-streot 
4iA, Wnrnford-court 
111, Cheapsido 
47, Bnsinghall-strcct 

80, Great St. Helen’s 
000, Commei-cial-road 
10 and 11, Jfincing-lauo 
53, Jloorgnto-strcot 
Dunster House, Mincing-lnno 
13, Bishopsgate-street within 
10, Lendenhall-streot 

2, St. Jlichaol’s House, Cornhill 

10 & 20, Cornhill 

24, Royal Exchange 

40, Jlineing-luno 
30, Bary-stinct 
Oichard-wharl. Blackwall 

17, Little Tower-street " 

3, Peuchnrch-aveuuo 
0, Crosby-sqnnro 
148, Leadcnhall-strect 

18, Billitcr street 

29, Thrcadncedle-strect 

41, Thrcadncedle-street 

17, Jloorgnto-strcct 
251, Tooley-strect 

7, Great Wiuchester-st. Buildings 
d;C, Ohcapsido 

8, Drapora'-gnrdens 

Pnlkirk Iron Oo. 

Fanning, ■\V., & 06. ... 
Fenner & Appleton ... 
Pindlny, Durham & Brodie 
Finlay, Campbell & Oo. 
Finlay, James & Co. ... 

Flint, J. H. 

Ditto . 

Flocrslicim, Louis & Co. 
Forbes, Forbes & Co. ... 
Foreign & Col. Gov. Trust 
B. Rose, See.) 

Forwood Bros. & Co. ... 
Fossick, lY. G. 

French & Smith 
Frey, A., & Co. 
Fnnolc, II., & Co. 

Galbraith, Pembroke & Co. ... 

Gardner, J., & Sons . 

Garrard & Niemann. 

Gavin, Birt & Oo. 

Ditto . 

Qedgo, Kirby, Millctt & Horse 

Geo, ■Walter ... ' . 

Gollatly, Hankoy, Sowell & Co. 

Gorrard & 06.. 

07, Upper Thnmcs-strcet 
28, Old Broad-street 
77, St. John-street 
I, Fonohureh-avouue, Lime- 
AWiito Lion-court 
81, Lcndenlmll-streot 
112, Fcnehnrcli-strcct 
East India Docks 
4, Bank-buildings, Lothbun 
0, King Aniliam-strcet 

8, Tiirogmorton-uvenuc 
CO, Gracechiirch-strcot 
80, Cannon-street 
3, A''ietoria-strcet, AVestminsI 
99, Greshnm-street 
0, Jcirrey’s-squarc, St. Mary 
Brnbnnt-conrt, Philpot-Iano 
8, Black Eaven-ct., Seething- 
27, Lcndonhall-street 

8, Austin Friar'S 
0, Now London-streot 
Duns II AI _ 1 I 
27, Lcndcnhnll-strcct 
East India Docks 
1, Old Palace-yard 
10 & 12, Jolm-streot, Adolph 
109, Loadouhall-stroot ■ 

01, Pall Mall 

Gibbs (Antony) & Sons 
Gillespie, A. M., & Co. 
Goad, Rigg & Co. 
Goddard. James. & Co. 



il, i 

Hngonbiisoh & Co. ... 

Hnlo & Son ...' 

Ilnll & Dougins 
Hiimmond & Co. ..! 

Jfnmpton & Sons 
Hancock Bros. & Carey 

Hnrkor, J. 0. 

Harmon, J., & Co, ,. 

Hams & Dixon 
HniTison, J. & C. ... 

Hnrvoy, Brand & Co.... 

Harvey & Daviils 
Han-oy, Sydney, & Co. 

Haycraft & ffiinilnn ... 

Hayes, E. 

Hayling Enilway Co. ... 

Hoj-n, Eomnn & Co. ... 

Haj-s, Alfred.’ 

Hny, J., & Co. 

Hazell, IVatsou & Tinoy 
Hecksher & Pearaon ... 

Henderson Bros. 

Henderaon and Liddell 
Herbert, E. (Central Hews) 

Hem'ng, Dewiek and Hardy 

Howett, IPni., & Co. 

j Hewitt, Vr., & Co. 

Hoydo'mann & Co. 

•’Hichens, Harrison & Co. 

Hicks, Hash & Co. ... 

Hindloy, 'W. H., & Co. 

Hitchins, T. P., Bedford & Co. 

Honro, Wilson & Co. ... 

Hpblyn, Edward . .. 

Holland, Arthur, & Co. 

Hollebono Bros. & Tronoh 

Homo and Colonial lr„.iuo Insuranoo 

•• Si, Fonolmroh-slroot 

• 10, Ponehnroli-nvomio 

• 22, Commeroinl Sale Rooms 

• 27, llartinVInno 

• 8, Pall-mall 

28, Mineing-Iano 
8, Warnford-coiirt 
li, Mineing-lano 
81, Grneoolmroli-strcet 
00, Ifark-iano 
05, How Broad-street 
110, Bishopsgate street 
27, St. Dunstan’s-Inil 
3, Great Winchester-street 
Hibernia Wharf 
8, Drapers’-gardens 

10, Philpot-lano 

‘1. Hoyal Hvehango-biiildings 

11, Headenhall-street 

0, Kirby-street, Hatton-garden 
8 , jFjncIi-lniio 
19, Beadenhall-street 
120, Cannon-street 
22, Moorgate-streot ’ 

31, Walbrook 
7, Arthur Street West 

•1. Commercial Sale Rooms, Jlineing 

12, Harp-lane 
II, Threndnecdlo-street 

Piefcio Hem'ng Wharf 
02, Qneen-street 
10, Rood-lane 

pimster-hense, Mineing-lano 
JoO, ^cadenlmll-streefc 
17, tjeadenlmll-sfcrcofc 
P Hoyal Exchange Buildings' 

fore & Tupp. 

nby, Hemolryk & Co. 

|j'|fiomo, P. G. ... . 

! |Homo, H. W.. 

[ 1‘Horncr & Sons . 

li^Horsley, Kibble & Co. ... 

IJkonlder Bros. & Co. 

ISHownrds & .Sons . 

Ditto . 

L-i^lHiiggins, A. E., & Co. 
'.-f'ilughe.s, Chemery A- Gold 

S ’ ughes,P.A. 

nscy, R. A., i Son. 

ntchinson. A., & Co. 

. Jiluth, P., & Co. (Gen. Ollices) 

;; Do. (Colfee Dnpt.) 

, ■ ilyatt, Parker & Co. 

Ichenhliiiser, J., & Co. 

. Ido & Christie. 

Imiicrinl Insurance Co. .... 
Indin-riibber Gnttn-pcrclm Co. 
|j Ingall, W. T. F. M., & Sons ... 

Insole, Geo., & Son . 

Institute of Suneyois. 

Isaaes, M., & Sons . 

Isaacs, Moss . 


... lOi, Tokonhoitsc-ynrd 

... 00, Groat Tower-street 

... 10, Billitcr-strcct 

... 1, How-squaro 

... Mitre-squnre, Aldgato 

... 79, Oraccchnrch-strcet 

... lit!, Loadonholl-strcct 

... Plough Court 

... City Mills, Stratford 

... 18, Throgmorton-streot 

... .'I, Brabant-court 

... 41, Murk-lunc 

... Dmislcr Ifouse 

... & 4, Groat Winchester-street 

( 12, Tokenhouse-yord 

... 1, Jloorgato-strect-chnmbcrs 

06, Mark-Iniio 
72, Mark-lane 
1, Old Broad-street 
1 on. Cannon-street 
147, Leadenlmll-strcot 
12, Great George-strcct 
60, Fcnehurch-strect 
101, Cannon-street 

JnokDoii & Till. 

Jncobs, A., & Sons ... . 

Jnmos & Slmksiicaro. 

Jimoiicz, A., & f3oiia. 

Jolinson, jrattlioy & Co. 

JoIiiiBtono, II. B. 

Johnston, E., Son & Co. 

Jones, E. G., Price & Co. ... 

Jonrdniu & Pawlo . 

.ludd & Co. 

Junior Army and Navy Stores, Limited 

Junior Carlton Club. 

Justice, Philii) S. 

21, Commeroial Sale Booms, Minoing- 

8, Eiissoll-strcot, Covont-gardon 

10, Austin-lVinrs 

BO, Fonohuroli-strcot 

78, Hatton-gardou 

10, DeauVyard, ■Westminster 

0, Great St. irelon’s 

1, Clmrob-courti Clemont’s-Iano 

0, Warnford-court 

St. Andrew’s-liill, Doctors’-eommons 

13, Eegent-street ^ 


14, Soutliamptou-buildings, Olian- 



Kebble, Son ci Co. 

Keith, Prowso & Co. ... 

Kemble, Trower & Co. 

Kcnnard (Stopben) & Co. 

Koysor, A. & Co. 

Kilkenny .Tunotion Eailway 
Kimbor, Henry, & Co. 

Kingsbury & Co. 

Kino, A. M. 

Ditto . 

Ditto . 

Ditto . 

Knill, J., & Co. 

Knill & Grant. 

Knowles & Foster ... 

Kiobel, Jameson & Co. 

Kopfs Extract of Meat Co. (Limited) 

Ditto . 

Ktimpora, Ernst 

Kuypere, 0. . 

Kynaston, Edward .. 

Bull IVlmrf 
48, Ohen2)side 
21, Minoing-lano 
0, Great Winchester-street 
21, Cornhill 

1, Drapers’-gardcus 
73, Lombard-street 
Lombard-house, Ocorge-yard 
20, Ludgatc-hill 

4B & 47, Lombard-street 
.39 & 40, Coruhill 
87, Eegent-street 
Fresh Wharf 
80, Pudding-lane 
48, Moorgate-streot 
B, Fen-eourt 

2, DraiJcre’-gardcns 
28, Hcarn-strcct 

1, Fonchuroli-aveimo 
7, East india-avenue 
24, Minoing-hmo 

Lake, Beamnont & Lake 

, Lambert Bros. 

|| Lambert, diaries, & Co. 

|j Lance, George. 

ft Laud Loan and Enfranchisement Co, 

ffl Landau, Hermann . 

P Lane & Monro 

Laiigridgc, Hy., & Co. 

j:! Lanyon & Co,. 

s|| Lawrence, Frederick Tanner... 
j; Laws, Surtees, & Co. ... ' ... 

|; Lazarus, Lewis, & Sons 

Leask, W. 

gi Leather Exchange . 

Bi Leonard, H. S. . 

Leon Bros. 

K' Leiiard & Smiths . 

■ Lcvick, F., & Co. 

,■■■ Loveraon, James . 

'i Lewis* Peat. 

Lewisohn & Co. . 

Limerick and Kerry Eailway Co. 

Life Association of Scotland ... 

Ditto . 

Lindegreeu, A. . 

Lion Fire Insurance Company 
Littlejohn, Alexr. 

Liverpool and London a 
Insuranco Comiiany 


Lloyd & Lloyd. 

London Assnranco Corpomtii 

London Banking Association. 

London, Chatham and Dover Eailway 
London Oo-oporativo Wino Association 
London Financial Association 

1 Globe 

, 10, Now-sqnare, Lincoln’s-inn 
85, Ornccchnrch-stroot 

I, Crosby-sqnaro 
IB, Philpot-lane 

22, Great George-street 
5, Copthall-conrt 

II, Queen Victoria-street 
IB, Great St, Helen's 
29, Gresham House 

80, St. Thomas's-street 
East India Chambers 
29, Great St. Helen's 
14, Eastcheap 

5, St. Poter’s-alley, Cornhill 
82, Great St. Helen's 
29, King-street, Covent-garden 
Gcorge-yard, Lombard-street 
29, Holborn-viadnet 
0, Miucing-Inne 

Hayne-streot, Ciii I ^ j 
B, Westrainstor-chambeia, Victori 

5, Lombard-street 
48, Pall-mall 
27, Leadenhali-street 
5, Lothbury 
2, Draiicrs'-gardcns 

7 * 8, Cornhill 

Eoyal Exchange 

4, Cloak-hmo 

7, Eoyal E.\ehango 

57, Old Broad-street 

Victoria Torniinns 

10 & 12, John-streot, Adolphi 

1, Draiiers’-gardcns 


I I-ondon and S6. Katlian'iio Doi-ks 

Ditto .. 

Ditto ... . 



Ditto . 

Ditto ... ... 

i-ondoii and .Soiitli Tl’-nlm Coal 

Limited . 

London Stereoscopic Co. 

Lord Jinj-or, The Eiglit Umi.’l’lip 

Luke, A. R., & Co. 

Lnmiey, E. & H..,. 

Lyman, IT. S. 

Lyons Grnnni7 

5Co.... (Col. Mnrtimlnle), 109, Leadenlmll- 

(General Office) ditto 

(Sapt’s Office) London Docks 

Ditto St. Katlinrine Docks 

Ditto Culler-st. Wnreliouscs 

Ditto A'ictoria Docks 

(Wool Wnrehonse) London Docks 

^Ifickonzio Bros. 

iliickintosli, Ji. 

ilacnngliten & Stapleton 
MacnicoII & Eogers ... 
Mnctnggart, Tidmnn & Co. !!! 
ircCall, John, & Co. ... 
SrcOnnl, Gilbert J., & Co. 
MoEivan, Jns., & Co. 
Mcllivraitli, McEneliarn * Ca 
Mellmaitli, It. 
iroICenim & Co. 

McNiah, Alfred IT. ... 
Ifaddiok, A. 

Major* Field (Generniomces) 

Ditto (ToaDepl.) ..; 
Malcolm, W. F., & Co. ... 
Manbre Saeeharina Co., Lhnilcd 
Manning, Collyer * Co. 

Manning, Wm. Oko, * .Son 
Jiansion House 

— !>, Oincccliurcli-strcet 

— HCIicnjiside 

— Giiildliall 

• Mansion House 

• • • 1SJ, Pcnelinrcli-sti'cct 

— SI, St. Jamcs’-strcct 

— Bculoh-liill, ifonvood 
Upjicr Tiinmcs-strcct 


••• 82, Hrark-liiiie 
... 19, St. James-street 
8, Hinciug-lnne 

— Sii, Gtesliam House 
... 36, LendcnliaII.street 

— 137, HoiUidSditeh 
• 27, Walbrook 

27, Lombdrd-stract 
31, Leadcnlmll-atrcct 
East India Docks 
3, Ecnclnirch-avcnuo 
78, Old firond-strcct 
77, Old Broad-street 
Crown-buildings, Old Brand-street 
Bed Lion Whf. & Tliree Cranes m,f. 

SO, Leadcnliall-stieet 
110, Conuon-sirect 
Idl, Ecncbnrch-strect 
40, Lower Tliames-stiect 

Marcus* Co. . 

B Marino Tusnrauce Co.. 

I Mnrsball, A. 

_|Mnr8bnll & Preneb . 

; (Matbeson & Grant . 

a^Iatterson, O’Hoil & Co. 

r ;5rce, 0. Brooke . 

iJMegaw & Norton . 

ilMeier, 0. G. & Co. ... ." 

pMelcbcrs, Rnngc & Co. 

M Mendel, Moritz . 

;^irercautilo Trust Co. of New York 

Mercer & Mercer . 

Ditto . 

IlMerritt & Hotelier ... 
pMcrton, U. It. & Co. ... ..' 

; J Metal Ezebange . 

|MctrapoIitaa Railway Co. (Secretary) 

;|l Metropolitan Wliarf ... 

"jMilburn, AY., & Co, ... ' 
s| Mile End Distillery Co. 
j! Miller & Halls 

' Moffiitt&Co.. 

rsMoOatt & Heath 
' Moon, Bower & Co. ... 

Moore, Henry R. 

Mordnnnt Bros. 

Morrison, Bruce & Co. 

Morrison, Tbomns 
Mo.sentbnI, Julius, & Co. 

,, Jfosacs & Mitchell ... 

I Mounscy, Jasper 0., & Co. 

I Muir, H. B., & Co. ... 


• 53, Jiark-Inne 

• 20, Old Brond-straet 

31, Enatebenp 

14, Mincing-Iano 
82, AYalbrook 
Oa, Great St. Helen’s 

12, Rnncras-lano 
10, Pliilpot-lnno 

153, Lendenbttll-streot 
6, Lombnrd-atroet 

13, Snvile-row 
10, Mnrk-lano 

2, Oracers' Hall-court, Poultry 
118, Lendeiihnll-street 
•J, Lombard-court, Graceohurob-st. 
32, AYcstbourne-terraco and London 

1, Billiter-avenue 
86, Milo End-road 
Hibcrnia-clmmbors, London Bridge 

1, Rnilwny-plnco 
28, Penclmrch-streot 
38, Mineing-lnne 

21, Mincing-lane 

Exebangc-ebambera, Chnngo-alloy 
lA, St. Holeii’s-placo ' 

22, Great St. Helen’s 

2, Lombard-court 

1, Beer-lane, Great Tower-street 
51, Gracecburcb-street 

2, SuOplk-lnno 

20, Old Brood-street 

Nntlinn, D. .. . 

National Deposit Bank . 

National Moroantilo Bank, Dimitod ... 

National Provinoial Bank . 

Naylor, Benzon & Co, . 

Nesbittj Thos., & Oo. . 

Now Zealand Insurance Co. 

Now Zealand Shipping Co. 

Nicholls & Olarko . 

Nicholson, James, & Co. 

Niokoll & Knight . 

Nissum Fiord Company, Limited 
Northampton and Banhnry Junction 

Hailway Company. 

Northern Hailway of Buenos Ayres 

Company, Limited. 

Norton, Hose, Norton, & Brower 

Nutter and Pinehin. 

21, Threaduocdle-streat 
17, EussoU-streolj Oovont-g 
20, Lomhard'Strect- 

Si, Old Broad-street 
3, High streot, Borough 
34, Lcadonhall-etrcet 
84, Bishopsgatc-street 
.0, High-streetj Shoreditch 
214, Upper Thamos-street 
21, Great St. Helen’s 
8, Drapers’.gardcns 


G, Tictoria-stroct, H’estminster 

24, Coleman-street 

Solicitor’s OfBce, L. B. and S. C. 

Hailway, London Bridge Terminus 
32, Great St. Helen’s 

O’Beimo, J. L. 

Ogilvy, Gillandeis & Co. 
Ollivier, K. W. 
Oppenheiin, J. & S. 
Oriental Tea Agency ... 

IV luchcstcr House'; 

7, St. llildrcd’s-court 
88, Old Bond-street 
21, Throgmorton-street 

8, Mincing-lano 

I Paeiflo Mail Steam Ship Co. ... 

1 Podday, H. J. D. 

i Palmer, Cecil, & Co. ... 

•11 Paris Undenrriting Association 
m Parker & Co. 

jfl Parrish, Dillwyn 
* Patent Chromo. Enamelled Glass Co. 

Patry & Pasteur . 

Peat, Chattock & Co.... 

Peek (Francis), Winch & Co.... 

, Penfold, J. W.. 

I Penney, G. H., & Co.... 

! Peruvian Guano Co. (Limited) 
j Petroleum Association... 
i Petroleum Storage Company (Limitcdl 
j Phillips, Ellissen & Co. 

J Phillips & Hill. 

I Phillips & Webb 
(Pilkingtou Bros. 

IPink (Bdward) & Sons" 

fj Ditto . 

^^inknoy. Sons & Clare 
i-Pittar, Leverson & Co. 
iPilts, Fr., & Co. 

SPollock & Co. 

iPosno, C. J. ... 

iPottor Bros. 

IPotter, John, & Co. ... 

I Ditto . 

jPowell Dullryu Steam Coal 

fPower Bros. & Co. ... 
fcresoott, E. G -. 

.fcicc, C. W. ... 

■Price, VV^atorhouse & Oo. 
jPrideaux, W., & Son ... 

|Puleaton, Brown & Co. 
iPullmna European Car .yff B o c 
|Pullman’s Palace Oar Co. 

Windsor Chainbors, Gt. St. Holon’s 
20, Gt. St. Holoh’s 
20, Austin Friara 
4fl, 40 & 47, Cornhill 
St. llichael’s Rectory House, Corn- 

2, Copthall-buildiugs 
110, Southwark-strect 
38, Mineing-lane 

140, Upjsjr Thames-street 

3 it 4, Fonchurch-streot 

20, Great George-street, Westminster 

o’i, Limc-strcct 

07, Old Broad-street 

80, Graceehnreh-street 

3, New Loudon-strect 
30, Throgmorton-street 
27, Martin’s-laue 

0, Great St. Helen’s 
171, Queen Victoria-street 
Staple-street, Long-lane 
48, Eastcheap 
11, Great St. Helen’s 
00, Ginceehnrch-street 
22, Great St. Helen’s 
03, Lincoln’s-inu-fields 
10, Fiiisbnry-circns 
18, Billiter-street 
10, Great St. Helen’s 

East India Docks 
23, Great George-street, Westminster 
118, Bishopsgatc-street within 
11, Wnrnford-court 
17, Throgmorton-street 
44, Gresham-strcct 
Goldsmiths’ Hall 
2, Bank-buildings 
07, Old Broad-street • 

St. Paneras Station 


Railway Deboiitiire Trust Co. 

RalU Bros. 

Ralli & Mavrojani s.i 
Ransomcs & Rapier ... 
Redwood, Boverton ... 

Rees, Hy., & Co. 

Remaohs, Nephew & Co. 
Reinhold & Co. (Calcutta) 
Renshaw & Renshaw ... 
Renton Bros. & Co. ... 
Reynolds, Sons & Co.... 
Richards, Tweedy & Co. 
Richardson, IV. W., & G. 
Ridpath & Ridpath ... 
Robinson, Fleming & Co. 
Rodman, 17. H. 

Rogei-s, G. P. 

Rogers, Hy., Sons & Co. 
Rollins, J. G., & Co. ... 

Rolls & Lucoek 
Ross, Geo., & Co. 

Ronso, R. J., & Co. 

Royal Bank of Scotland 
Rngg, C. H., & Co. ... 
Rumnoy, Howard 
Rushton Brothers 
Rustless & General Iron Co. 

S, Koorgate-strect 
U, King's Arms-ynrd 

•1, Bank-buildings 

23, Finsbnry-ciicus 

117, Bishopsgatc-street within 

5, IVcstminster-chambera 

85, Gracoohurch-street 

100, ■V7estmiuBter Bridge-road 

0, Rood-lane 

34, Pcnchurch-strcet 

2, Suffolk-lane, Cannon-street 

10, Throgmorton-streot 
25, Charterhoiue-street 
2, Finch-lane 

8, Lombard-eourt 

33, George-street, Hanover-square 

21, Austin Friars 

11, Royal Exchange 

5, Great IVinchester-street' 

134, Lcadcnhall-strcct 

Old Swan Wharf, Upper Thames-st. 

21, Mincing-lane 

80, Cornhill 

180, Fenchnreh-street 

123, Bishopsgate-street 

82, Bishopegatc-strcct 

18, Walbrook 

IS, Lime-street 

97, Cannon-street 

4. Helen’s Oliiss Company 

i -jj.St. Liicm Ccntml Sugar Fact 
j pany, Limited 
' f .Samuel, JlGiitagn & Co. 

,| .S.rndemnn, G. G., Sons & Co.. 
Ij.Sandei-s Brothers 
...Sargant, 17. T., .t- .Son..- 

I Schillizi, T. E. 

pSchwann & Co. 

r Serntton, Sons &Co. ... 
gScruttou & iSon 
pcaright, James, & Co. 
pechiari Bros. & Co. ... 
phadwell, L. L. 

f '^'"iarmau. Catling & Co. 

iniq)3& Wilkins ... 
muiaw, Finlnyson & Co. 
I^epard & Co. 

teilvn (Bruno) & Son ... 
lilverston, Mark 
limson Brothers 
iclnir, Hamilton & Co. 
ikinner, Thomas, & Oo. 

I Jloane, Wells & Taylor 
Snith & Ohorlcs 

, George, Ss Co.... 
iths & Gore 
lith, Payne Ss Smiths 

8, Brupers’-gardens 
... 30, Old Broad-street 
■ 20, St. Switliin’s-lane 

• •• 25, Abchiirch-hmo 
... 3, Mincing-lane 

— 121, Bishopsgntc-sti-ect within 
... 3, Moorgnte-street 
14, Mincing-lane 

• •• 59, St. Mnry Axe 
. 8, Idol-lane 

• •• 73, Great Tower-street 
--- 75, Old Brond-strcct 
-■- 18, Old Bi-ond-street 
-- 114, Fenchurch-street 
--- 11 est India Dock-rond 

Canning Town 
-• 9, Grneechurch-street 
-•- 81, Old Broad-strpet 
-.- 7, East India-nvemie 
3, Adam’s-court 
-• l,New-sqnaro 

- Sonthsea House, Tlircnthieedle-slreet 
-•- 18, Groat Winchester-street 

- 88, Bishopsgate-street 
... 25, Mincing-lanc 

... 32, Finsbury-circus 
... 85, CrutchedFriara 

• 4, W'arnford-conrt 

.. 8-1, Peuolnireh-street 
.. 17, St. Helen’s-plaee- 
.. 7, East India avenue 
-• 24, St. Jolm-strcetj Smithfleld 
>• Southsca Honsc 

- 114, Peuchurch-atreefc 

• 10, WhitehoU-plnce, Westminster 

• 1, Lombard-street 

(ill, A. 0. 
g & Eodge ... 

, Jnmcs E. & Snmiicl 

1OC,. Lcadcnhall-strcct 
Smith’s Wharf, Qoccnhitho 
M, Lcadcnhall-strcct 
II, St. Benct’a-plnco 

oil. King 'Willinm-strcct 
M7, Drury-lniio 
97, Cimnoii-strcct 
19, New Bridge-street 
)0, Upper 'I'hamcs-Etrcet 
, Drapers’-gardciis^ 

1, Ciillnm-strcet 
, Royal Exchange Avenue 
', East India Avciinc 
, Clcmcnt’s-lnnc 
, SInscovy-court 

rown-buildings. Old Broad-st^t 
t, Qnccii Victoria-strcct 
i, Old Broad-street 
5, Camoinilc-strcct 
!4, Fcnchnrch-strcct 
i. Rood-lane 
I, Coriihill 

1, Queen Victoria-street 
Eulah-hill, Nom-ood 
I, Lcadeiihall-strcct 

f heohald, J. -Wilsou ... 
Iieodor & Rawlins ... 
bmpson, W. .Tames & Uci 
lorason, Wm. S., & Co. 
lorimm, Thomas, & Go. 
lornhill, Cecil 
lomhill, W., & Co. ... 

Do. Workshop No. 1 
D«- Do. No. 2 

;-,yolm<! and Rniigo . 

LTpwncnd, Alexr. ... 
;;.TrBmwnys& General Works Co! 
phuvera (.Toseph) & Sons ..! 
g^scott, James, & ,Son 
fedor, jiloarc & Ca ... 
^atonbull, Alcxnmler, & Co. ... 
hTorncr, Brightmnn & Co. ... 
^rs, Thomiison & Co. 

' Wor & Jrnnn. .'!! 

Great Gcorge-strect 
, Pndding-Iano 
9, Fenchureh-street 
st India Docks 
Dukc-strcct, London Bridge 
Field-court, Qray’s-inn 

. 70a, Aldermnnbnry 

I f.'raioii S. S. Co. 

United Telephone Co. ( 
gl Secretary 

General Ollices... 
Mctropolitnu Jlai 

8, Draiicrs’-gnrdcn 
10, Jlincing-lnno 
•98, irincing-lanc 
97, Chenpsido 
21, jUineing-lnne 
2, Wanifoi-d-coiirt 

I IJ, Now Bond-str 
Dden Works, Ensto 
Little Wiudmill-strc 
Great Jlnrlborongh-i 
.lolin-strect, Bedford 
Ave irnrin-Inno 

II and 12, Great 'To 
Dnnstcr llonse, Jlin. 
■97, iloorgnie-strect 
119, Caaiion-slieet 

27, Leadenlmll-strect 
25, Lime-street 
15, Oient SI. Helen's 
29, Jlineiug-lniie 
5, East India Avenue 


AbiTiIininn, Hnrk 
Adnmsoii, Gilfilinu & Co. 
AilniiiB, W., & Co. 
AReliisto, A., it Co. 

Allen Bros. & Co. 

Alston, Hnmilton & Co. 

Alt, AT. ,I. 

Audcraon Bi otlicr.s 
Aiulrndc, Josepli 
Bnj’loy, .Tmncs A. 

Biiyley, J. C., & Co. ... 

Benton Bros. 

Bell, John . 

Bevis, Russell it Co. ... 
Bosnnqiiot. Curtis & Co. 
Boustcnd, E., it Co. ... 
Bower, E., it Co. 

Bowley it Bristow 
Brndshnw, John, it Co. 
Brnud, R., it Co. 

Brnun, S. P., it Co. ... 
Brown, AT. H., & Co.... 
Bnlloch, .T. it G., & Co. 
Buttery, .T., it Co. 
Cnudory, AA'., it Co. ... 
Cnmphell, L. A. 

Cnmpholl, Shenrcr & Co. 
Carter, H. it A. 

Cnrvill, Francis, & Son 
Cater, J. AT., .Sons & Co. 
Olinlincrs, AT. B., & Co. 
Clark, Charles, & Co. ... 
Cohen, A. it E. 
Cotcswortli & Powell ... 
Oonlon, Borthoud & Co. 
Outhill, Son & do Lungo 
Daniel, Hhos., & Co, ... 


. 117, Lcadonhall-i 

. 2, Billitor-avomu 

. 2(1, Bisliopsgntc-i 

. .Sontlusea-honso 

. Alhion-placo, I,oi 

. 22, Minoing-lnne 

. 11, Queen A'ictor 

. 1C, Philpot-lano 

. 49, Barhican 

. 120, Cannon-stre 

. 1, Queen Victorir 

. 2, Great AVinehcs 

. 118.1, iSontliwark- 

. 9,1, King Aniliair 

:. 28, Rood-lane 

. .94,1.endonhnll-st 

... 1.94, Fenchurch-s 

. .91, Lcadenlmll-st: 

. 4, Bishopsgate-sti 

. 7, Union-court, ( 

. 1C, Philpot-lano 

. ill, Leadeiihnll-st 

. 1.9, li'enchiu'ch-nv 

. 17, Trinity-aqunr 

. 151, Fenchnreli-s 

. 7, JelVroy’s-squnrc 

. 70, Great Tower-; 

. U, Laiu’enee Pou 

.. 4, Bishopsgate-sti 

. 89,’I/)rahard-strc; 

. Dashwood-house, 

. AA'indsor-chamhen 

. 47, Basinghall-str 

. 148, Leadonhall-s 

'. 41, TIu'cadnccdIc- 

. 87, Old Jewry 

. 4, Mineing-Iano 


Bent Bros. & Co. 

Bent, Falinor &Oo. ■ ... 

Bewlnniit; Qco. & B. 

Bobveo, Sninnol & Sons 
EI(loi',A.B. ... .... 

Elins & Co. 

Engichnrdt, E., & Co.... 
Ernstlmnsen & Ocstcrlcy 

Ernns, J. H. 

Eves, C. AT., & Co. ... 
Fniming, AV., & Co. ... 
Findiny, Binhnin & Biodie 
Finliiy, Jns., & Co. ... 
Finley, Cumiiboll & Co. 
Floersboiin (Louis) & Co. 
Forbes, Forbes & Co. ... 

Forwood Bros. 

Frnsor, J. & L., & Co. 

Gibbs (Antony) & Sons 
Gillespie, A. M., & Co. 

Gray, Bnwes & Co. ... 
Grnlinins & Co. 

Hnrvey, Brand & Co.... 
Hnyii, Koman & Co. ... 
Hcekslior & Fearson ... 
Holland (Arthur) & Co. 

Hollway Bros. 

Horne, P. G. 

Horsloy, Kibblo & Co.... 
Hnsoy, R. A., & Son ... 
Huth, 1^'cderiolc, & Co. 
Ingall,.AV. T. F. k, & Sons 
Isaacs, M., & Sons 
Jiincnc!!, A., & Sous ... 
Jolinston, E., Son & Co. 
Kcnnard (Stephen) d: Co. 
Knowles & Foster 
Koobql, Jameson & Co. 
Klimpeiis, Ernst 

Knypors, C. 

Lnngridge, Henry, * Co. 

Lnnyon & Co. 

Lowisolin & Co. 

Leon Brest 

11, Old Broad-street 
11, King’s Arins-ynrd 

11, Now Broad-street 
C, Tokenbonse-ynrd 

7, St. Heleu’s-plnoo 

20, Gieat AVinebestor-street 

14, Mineing-Iano 

21, Alincing-lano 

1, Riobes-conrt, Lime-street ' 

1, Fen-court 

23, Old Broad-street ■ 

1, Fenohuroli-avenuo 
34, Leadonball-streot 
AVIiite Lion-court, Cornliill 

4, Bank-buildings 

9, King AA'illiam-atroet 
CO, Graceeburoli-strcet 
C, JelTiey’s-sfiunro 

15, Bishopsgate-street 

28, Crutehed-friiu-s 
13, Austin-friars 

123, Bishopsgate-street 
05, New Broad-street 

10, Pliilpot-lane 

8, Fiiich-lane 

17, Leadouliall-strect 
19, Billiter-squaro 
79, Qraceehnrch-street 

12, Tokonliouse-yard 
50, Tlireadnecdle-etreet 
00, Feuclnneh-stroet 
05, Feuebnreli-stroet 

0, Great St. Helen's 

5, Great AVinobcater-street 
48, lloorgato-strcet. 

0, Fen-court 
1, Fonebnreb-nvonno 
7, East India-avemio 
10, Great St. Helen’s 

29, Gresham-bonse 
Hayne-street, Ohnrtcrhouse-sqiiare 
02, Groat St. Helen’s 

Maetaggart, Tidman & Co. ... 
MoOanl, Gilbert J., & Co. ... 

MoEwan, Jns., & Co. 

Malcolm, AV. P., & Co. 
Manning, Williani Oke, & Son 

Mce, G. Brooke . 

Megaw & Norton . 

Meier, C, G., & Co. 

Melcbors, Rnngo & Co. 

Mendel, Aloritz . 

Jlcrtoii, H. E., & Co. 

jroscntbnl (.Tulins) & Co. 

Muir, H. B., & Co. 

Naylor, Beur.on & Co.. 

O’Beirno, J. L. . 

Ogilvy, Gilinndei-s & Co. 

Pnddny, H. J. B. 

Penney, G. H., & Co. 

Power Bros. Co. 

Puleston, Brown & Co. 

Ralli Bros. 

Ealli & MnrTojnni . 

Rieliards, Tweedy & Co. 
Robinson, Fleming & Co. 

Rogci-s, G. F. 

Rollins, ,T. G., & Co. .. 

Rusbton Bros.. 

Sandomau, G. G., .Sons & Co. 

.Sanders Bros. 

Sebwann & Co. 

.Scott & Co.. 

Searigbt, James, & Co. 

Scebinri Bros. cS: Co. 

.Shaw, Pinlayson & Co. ... . 

Silva (Bruno) & Son. 

iSimson Bros. ... 

Sinclair, Hamilton & Co. 

Smith, Geo., iS: Co. ... - ... 

Smith, AVood & Co. 

Stancs, AVatson & Co. 

Steel Bros. & Co. 

.Stranss, A., & Co. . 

Tamvaoo & Co. . 

Tohno & Eimge . 

. 30, Leadouball-Btrcet 
. 27, Walbrook 
. 27, Lombard-street 
. 30, Londonbnll-sti’oot 
. 40, Lower Tbamoa-streot 
9 a, Groat St. Helen’s 
12, Paneros-lano 
10, Pbilpot-lnno 
1, Fonebmeh-nvenno 
158, Londenliall-street 
118, Londenbnll-strcet 

1, Beer-lano, Great Tower-street 

20, Old Broad-street 
34, Old Broad-streot 

7, St. Mildred’s-conrt 
29,' Great St. Helen’s 
84, Lime-sti-cct 
118, Bishopsgnte-stroct 

2, Bank-buildings 
25, Finsbnry-circns 
117, Bishopsgate-street 

2, Fincli-lano 

21, Austin-friars 

5, Great AVinebester-streot 

Old Swan-wharf, Up))cr Thnmes-st. 

13, Lime-street 

20, St. Swithin’s-lnno 
25, Abebnreb-lano 
0, Moorgatc-sti-eot 
8,- Idol-lane 
7, East India-nyenno 

3, Adnm's-conrt 

88, Bishopsgate-street 
35, Crutehcd-friai's 
34, Fencbnrch-strect 
17, St. Hclon’s-idace 
114, Feuclmrch-street 

14, Leadonhall-strcet 

4, Culinm-street 

0, East India-nvenue 
10, Rood-lane 

5, Fonoburob-sti'oot 

11 & 12, Great Tower-street 

Tnn^s iS; Dixon 

Iiiy, J., & Co. 

loiid’oraon Bros. ... 
louUer ]!ro3. & Co. ... 
roues, n. 0., Price & Co. 
r.niigridgo, lloiiry, & Co. 
rjnws, .Surtcos & Co. ... 
ilcllwrnitii, JIoEnoimni & Co 
irnrslmll, Artlinr 

\tiibnrii, W., & Co. ... 
Mosses & Mitohcli 
Pneifio Mail Stemn Sliip Com 
Piiikuey, Sons & Ciiirc... 
Potter (John) & Co. ... 
Riigg, C. U., Si Co. ... 
Serntton, Sous & Co. ... 
Skinner, Tlioinns, & Co. 
Smith, tv., & Co. 

Stnmore, 'Weston & Co. 

'X'litimin & Co. 

Taylor,- Bctlicll Si Uohcrls 
Turner, Brightiniin & Co. 

Tylor & Mann. 

Dniou Steamship Company 
Walker, Howard & Co. 

Watts, Ward & Co. ... 
Weatcott & Lauranco... 

White, John . 

Wright Bros. & Co. ... 
Potter Bros. 

.81, Graccohurbli-strcoli ■ 
10, Leadenhall-stroet 
MO, licndcnhaii-strcot 
1, Clinroli-conrt, Ciclnoiit's-lano 

10, Great St. Helen’s 
East India-ohamhoi-s 
8-1, Lcadenhall-strcot 

81, Eastchcap ■ 

I, Billiter-avenuo 

ill, Gi-aceohnrch-strcct 
Great St. Helen’s 

11, Great St. Helen’s 
lo. Great St.Helen’s 

82, Bishopsgate-street 
9, Graceclnirch-sti-eet 
7, Dast Tndia-avenne 
100, Lcadcuhnll-strect 
81, Lcadenhall-strcet 
85, Pndding-hmo 
110, Feiiehnreh-strcet 
15, Great St. Helen’s 
5, East India-avcnno 

II, Ecadonhall-strcet 
70, Dower Thames-strect 
85, Grnccchurch-strcet 
0, Fonchm-ch:strcet 

20, Great St. Helen’s 
3, Grxint St. Helen’s 
18, Billiter-street 


Alexandi-a (Newport) Dock Co, 
Audoi-son, Wohor & Smith ... 
Boll, J. T., & Co. 

Beivsford & Co. ... ... 

,.. 00, GraccohuTch-strcot 
... 0, Miuoing-Iauo 
... 2, Lower Thamos-strcct 
... St. Olavo’s-wharf 

Brook’s Wharf.. 

: Cook, J. W. 

Hall & Douglas 
I Hicks, Nash & Co. ... 
i Hoaro, Wilson & Co. ... 
Kobhle, Son & Co. ... 
Kuill, J,, & Co. 

London and St. Kath. Docks 


Ditto . 

Ditto . 



Major Sc Field. 

Metropolitan Wliarf 
Millwall Dock Co.’s Ollieo 
Smitli, W. JI., Si Sons... 

■Upiier Tlmmes-strect 

80, Bury-street 

22, Commei-oinl Sale-ri 

Pioklo Herring-wharf 

Dnustcr-houso, Mincin 



109, Leadenhall-street 


St. Katherine-doeks 



Wool-warelionsc, Loiuh 

Bed Lion-wharf 


1, Railway-place 

SmitI If I 



Banbury & Cheltenham Direct Rail- 

Biickfastleigh, Totnes & .Soiitli Devon 

Railway Co. .... 

Buenos Ayres & Ensenada Port Rail¬ 
way Co. (Limited). 

Central Wales & Carmarthen Juiietion ' 

Railway Co. 

Cowe? & Newiiort Railway Co. 

Culm Valley Railway Co. 

Douvov & Rio Qrando Railway Co. ... • 

Groat Northern Railway Co. 

Hayling Railway Co. 

Kilkenny Junction Railway Co, 

8, Drapora’-gardoua 

1, Drapers’-gardcus 

2, Suifolk-lano 
Fnrrlugdou-strcet Goods 
8, Draiiors’-gnrdcns 

1, Drapow’-giirdons 

Limorick & Kciry Emlwiiy Co. ... WcBtmimlor-chnmboin, Viutoria- 
Tioudoii, Clmllmni & Bovor Itiiiitviiy Co. Yictoiia-stiittou 

XortlievH Railway of Rueiios Ayrea Co. 


Stall'oid & Utto.\etor Railway Co. ... 
West Somoreet Railway Co.i 

, DraiKrs’-gardeiis 
, Draiiera’-gai-deiis 
, Braiieiii’-giii’deii.s 

Ratli, Uemy, & Sons ... 
Rerglieini, J. S., & Co.... 
Rlaenavon Iron Co. 

Rolling & Lowe 

Roundy, W. . 

Rrandeis, Goldselimidt & Co 
Brown, Bnyloy & Dixon 

Cadiot, E. H.. 

Carter, H. & A. 

Campbell, J. Pitcairn, & Co. 
Colion, CK, & Co. 

Crosaley & Co.. 

Gumming & Milford ... 

Daunt, W. H. 

Davies, W. C., & Co. ... 

Dennis, W. IJ. 

Falkirk Iron Company 

Fossick, W. G. 

Frouoli & Sinitli 

Guest & Co. 

Qutike, Paul. 

Hammoud & Co. 

Hitclnns, T. F., Bedford & Co. 

... Grcslinm-bonse 

... 18, Lanrcucc Pouutiivy-liill 

... 8«, Caunoii-strcct 

... 2, Lauronoo Pomitncy-liill 

... Lcadcnball-lionsc 

... 8, Austiu-friain 

... 1, (jneen Yictoria-strcct 

... a, East India-avcniic 

... U, LnuccucePonntiicy-hill 

... 20, Great St. Helen’s 

... COO, Commerciul-iond 

... 08, Gmccclnueli.stteet 

... 27, Lcndculinll-strcet 

... 11, Queen Yietoria-street 

... 07, Graceclimeh-stieet 

... 101, Lendcnlial|.street 

... 07, llpirer Tliames-street 

... 80, Caunonsstreet 

... Brabnnt-court, Philpot-laiio 

... 18, King’s Aiins-yard 

... -l-l, King William-sti’cet 

... 27, Martin’s-laiio 

... 10, Rood-lane 

Hoblyn, Edward . 

Hughes, Cliemery & Gold ... 

Isaacs, Moss . 

James & .Shakesiware. 

I Lambert, Charles & Co. 

Lazarns (Lewis) Ss Sons 

: Leviok, F., & Co. 

Lindcgiecii, A. 

Lloyd & Lloyd. 

Metal E.vclmngo 

Morrison, Thos. 

Mouiisey, Jnsjjcr C., & Co. ... 

Peat, Chattockib Co. 


Pitts, Fr., & Co. 

Richnidson, W.IY.&O. 

Rogers, Hy., Sons & Co. 

Rustless &. Oenend Iron Company 
Haigant, W. '1'., & Sons 

Sharps & Wilkins . 

Soarcr^ A. J.. 

Spencer,.!. E.its. 

Stephens .fcReyuold.s. 

Stuart Rrothers & Co. 

Yivinii, Younger & Rond ... 
You Dudelszeu it Co.. 

Clarke, H.,& Co. 

Cohen, J. H., & Co. 

Cory Bros. & Co . 

Gordon, R., & Co. 

Harris & Di.\on . 

Hanisou, J. & 0. . 

Insole, Geo. & Son '.. 

Lambert Bros. . 

London imd South Wales Coal Co. 
Powell-Duffl-yu Steam Coal Co. 

100, Londonhnll-streot 
8, Brabnnt-court 

101, Cannon-street 
10, Anstin-friare 

1, Crosby-stpinro 

20, Great St. Helen’s 
George-ynrd, Lombnrd-e 
27, Lendeulmll-street 
•1, Cloak-lane 

2, Lombard-court 

2, Sullblk-lauo 

110, Upirer 'I'linmes-strci 
27, Mnrtiu’s-lnne 
22, Great St. Helen’s 

3, Lomliard-court 
18J, Lendenlnill-strcet 
87, Cannon-street 

(i, Alincing-lanc 
18, Great Winchester-str 
II, St. Benet’s-irlaco 
07, Cannon-street 
8, Clement s-lano 
11, Queen Yietoria-street 
117, Leadeiihall-stieet 
1, East India-avenue 

J 7, Gracccburch-strcet 
SO, Great St. Helen’s 
8, Feuchurch-avenue 
00, Mark-lane 
81, Qraccolmroli-street 
00, Mni'k-laiio 
117, Lcndcnluill-strect 
80, Graccohuroli-strcet 
0, Grnecchurch-stiect 
28, Great Gcorge-stieot, Wi 


. ], Dnnstor-com't, Minuing-liuii 

. 80, Fcnoliuroli-stroet 

.. ... 12, Qi’cntTowor-strcot 

... 24, Ponclmroli-strcot 

. 12, Little Towor-stroot 

. 181, Upiwi'Tlmmos-sti'uet 

Ctt))oI (Arthnv) & Co. ..L Dnnstor-co 

Onssoll, Smitli & Co. 80, Fcnoliurol 

Mwnnls & HniTis ... ... ‘ ... 12,GrcntTov 

Edwnrcls & Son . 24, Ponclmrel 

aoddnrd, Jns., & Co. 32. Little Toi 

Gonndry&Co.181, Umwr Tl 

Hmicock Bros. & Cnrey . 28, Mineiiig-1 

Hewett, W., & Co... 7, Artlmr-stvcet IVest 

Hope, 0., & .Son ... . 24, En.stelicup 

JInonngliton & Stnplelou . 8, Mineing-lnne 

Moflett & Co. 28, Fenelmveli-street 

MoflUtt & Heiith . 88, Mincing-lone 

Oricntnl Ten Agency. 8, Mineing-lnne 

Peek, Eros., AVirich & Co.3 & 4, Eenclinrch-street 

Eeinnolis, Nephew & Co.- . o, Bood-lnne 

Sliepnrd & Co. .. 2.'., Mineing-lnne 

'i’heodor & Rnwlins ... . 10, Mineing-lnne 

Thompson, AV. .1. & II.3.?, Mineing-lnne 

Tycrs, Thompson & Co.S'), Arineing-lnno 


Anderson (.losoiih) & Son . Hil.ernin-ehni 

Bennett, Piercy & Co.20 Tooloy-sti 

Bowles, George . 18, AA''cst Smi 

Brown, Geo., & Sons. 9. Hnlf Moor 

Conrtenny, J. & AV. .1.201, Tooloj-s 

Denny, T. A., & Co. Hiboniin-ehni 

Dixon, Cnrtor & Co. 9 & 10, High 

Enstty & Corderoy . Hihernin-ehn 

Hnyes, ..Hibernin-wh 

20 Tooloy-sti-ect 

J3, AA''cst Smithfield 

9, Hnlf Jfoon-pnssnge, AVhitcehni)cl 

2r>l, Toolej-street 


9 & 10, High-street, AVliitechniiel 



Kopfs Extinct of Ment Oo.(Limitcd)... 2, Drniicrs’-gardeiis 


McCnll, .John, & Co. ... 
Matteinon, O’Neil & Co. 
Miller & Hnlls 
Nesbitt,Thos., & Co. ... 
Reynolds, Sons & Co.... 
Slonnc, AAfolls & Tnylor 
Tnylor (AVm.) & Dottridgo 
AVnrron, Bodlo & Co. .. 
AYobb, Joseph R., & Co. 
AVnrringtoii, J. .T. 

Yeats, Aoooks & Copemnu 

28, Henrn-sti'cet 
IS", Houmlsditch 
3, High-street, Borough; 

, 2o, Chnrterhouso-strcot 
24, St. Jolm’s-stroot, Smithfield 
18, Dnkc-streot, Loudon-bridgo 
I 188, High-street, \Vhitoolin]x!l 
. 252, Tooley-strcct 
. 29, Tooloy-streot 
, Hibcrnia-chnmbem 


1 Allnntt, Jno., & Co. 

90, Mark-lane 

1 Bonrsot, A,, & Co. 

9, Hart-street, Mark-l 

1 Brett, Ily., & Co. . 

2(1 & 27, High Holboi 

p Cnmpboll, Clinrlcs S., & Co, (Limited) 

•17, Mnrk-lnno 

1 1 Gee, AVnltor . 

10 tt 12, John-streot, 

1 Orconloes Bros. . 

81, Commercinl-strcct 

K London Co-operntive AVinoAssoeiiition 

10, John-strect, Adclj 

ji Mile End Distillery Co. . 

80, Mile End-road 

~ . 


j Alining & Cobb . 

11, Lime-street 

I 1 Bonteher, Mortiniore A Co, ... 

1 Dystcr, Nnlder & Co. 

«, Crosby-sqnnre 

j Good, Rigg & Co. 

10, Jrnrk-lnne 

1 Hej-domnnn & Co. 

22, Hnrp-lnne 

1 Lawrenee, Frcdk. Tanner . 

SO, St. Themns-street 

Leather Exchange . 


Sehwedcr & Co. . ... 

99, St. Mnry-nxo 

Smith & Charles . 



Nicholson, Jns., & Co. 

21.4, Upper Tlinmes-sti 

Niekoll & Knight . 

21, Great St. Helen's 

Nutter & Piiichiu . 

82, Groat St. Helen's 

Petroleum Assoeintion ... ,,, 

89, Grnceeliureh-street 

Petrolonm Storage Co, (Limited) ... 

8, Now Londou-street 

Phillips & AVobb . 

0, Groat St. Helen’s 

^ - 


Boll, Aloxniulor, & Co. 
Iclioulmnsci', J., & Co. 

Lyons Qninnry. 

Marcus & Co. 

Stephenson & Co. 
AVntson, Mcdill & Co,... 

37, Soothing-Imio 
30, Jtark-Inno 
Upiier Tlinmcs-slrei-l 
5D, Mark-limo 
20, Murk-luno 


IVnlton, Tiu'uer & 'Walton . IP, Lower M'hitccross-stnict 

Wld, 'Xlios., & Co.83, High-street, Borough 


Dunenn, James . 

Mnnhru Saccharine Coinirany. 

St. Lucia Central Sugar Factory Co., 

limited . 

Schwartz, J. 

0, Miuciiig-luuc 
110, Cuuiion street 

8, IraporB’-giirdcns 
Id, Mincing-Iuuo 

Costcll & Brown . 

Clarke, Niokolls & Coombs ... 
Pink (Edward) & Sons 

finime, Clins., & Co. ... 
Edenhoroiigh & Co. ... 
Hyntt, Parker & Co. ... 
Willniis, Overbury & Co. 
IVool E.\chnngo 


Allen & Hniibury 
Atkinson, Geo., & Co.... 

Evans, Lescher & Webb 
Homer & Sons 
Howards & Sons 
Howards & Sons 


Budgott, Jos., & Son.. 18, Lnureneo Ponutuoy-lnuo 

Henderson & Liddell.126, Cannon-street 

Travers, J., & Sons ... ... ... no, Oannon-streot 


Burt, Boniton & Haywood . 

Gardner, J., & Sons. 

Soratton & Campbell. 

... 88, Wnrdonr-streot 
... Hnoknoy-iviok 
... Staple-street, Long-lm 


IDA, Colemnn-streot 
2, Moorgnte-street bull 
Moorgnto-street clmmb 
.8, Coptlmll-bnildings 

Plough-court. Lombard 
66, Alderagntc-strcet 
60, Bni tholomow-close 
Mitro-sqnnrd, Aldgato 
City-mills, Stratford 


6d, Cannon-street 
.0, New London-streot 
114, Fenehnreh-streot 

Agm Bniik . 

. Aloxnndore & Co, 
Aiiglo-Uiiivorsnl Bunk 
Birkljcck Bnnk 
British Linen Co.'s Blink 
Burt, P., & Co, 

Coloiiinl Bnnk. 

Englisli Bnnk of Hio .Tnnoiro 
Erinnger (Emilo) & Co. 
Green, Tomldnson & Co. 
Grindiny & Co. 

JCeyeor, A,, & Co. 

London Bunking Aasooinlion 
Nntionnl Deposit Bnnk 
NntionnI J[orcnntiIo Bunk 
Nntionnl Provincinl Bnnk 
Hoynl Bnnk of Sootlnnd 
Snmnol, Montngn & Co. 
Smith, Pnyne & Smiths 

Kfi, Nioholns-Inno 
S4, Lombnrd-strcct 
Colcmnn-street Qoiiso 
41, Lombnrd-slrcct 
71, Cornliill 
13, Bishopsgnte-street 
13, St. Helcn’s-pluco 
4.3, Lothbnry 
32, Nicholns-luno 
i'i5, Pnrlinmont-strcct 
21, Cornhill 
57, Old Brond-street 
17, Rnssoll-sti-eet, Covent-gnrden 
20, •Lombnrd-street 
112, Bishop-sgute-stroct 
123, Bishopsgnte-stroct 
00, Old Brond-street 
. 1, Lombnrd-street 


Abbott, Tl'm. 

Anderson, A., & Co. 
Argent! Bros. ... 
Amytnge, Percy 
Bniley, Dnniel ... 
Bnnictt, W. IL, & Co 
Bencheroft & Gordon 
Bcllnirs, Vf. G., & Co 
Birch C&; Archer 
Bird, C. E. ... 
Bishop, IT.... 
Bruntoii, Bourko & C 
Bnolmn, Fntrick 
Olnyton & Aston 
Doubroi Willinm 

10, Tokenhonse-ynrd 
30, Throgmorton-street 
4, Anstin-frinrs 
.3, Copthnll-bnildings 
10, Drapers’-gnrdens 

28, Tlirendnccdle-strcet 
4, Tokonliouse-ynrd . 

8, Drnpora’-gnrdens 
8J, Angel-court 

4, Chnnge-nllcy 

1, Eoynl Exehnnge-bnildings 

18, Knch-lnno 

10, Angcl-conrt 

4j4, IVnrnford-eourt 

29, Thrcndncedlo-strcet 

Dimcnn, W. W. 

Entoii, R. IT. 

Ellis & Co. . 

Goldsmid, B. G. 

Gordon (Pnnmnro) & Co, 
Grentorex, IIojTiok A. 

Hnrker, J. C. 

Hichens, Hnrrison & Co, 
Hollebono Bros. & Trench 

Horn & Tnpp. 

Huggins, A. E., & Co. 
Jonrdnin & Pnwlo 
Lnndnn, Hermnnn 

Littlejohn, Alexnndcr... 
Mncnicoll & Rogera ... 
JIcKcnnn & Co. 

McNish, Alfred IT. ... 

Nnthnn, D. 

Oppenheim, J. & S. ... 
Pnlmer (Cecil) & Co. ... 
Pliillips, Ellis.sen & Co. 

Prescott, E. G. 

Price, C. W. 

Qnilter, TV. 0. 

Ronton Bros. & Co. ... 
Rodmnn, IV. H. 

Ross, George & Co. .. 
Scott, S. R. & Co. 
Sorimgeonr, J. & A. ... 
Silverston, Mnrk 

Stniilca, Henry. 

Stock & Shnro Auction Co. 

Stockdnlc, E. 

Stockon, J. A., & Co.... 
Tliornhill, Cecil 
Vivinn, Gray & Co. ... 

Wnllis, J. B. 

■Withers, J. 

Woolston & Beeton ... 

St. Stophon’s-ohmnbcrs, Tologrnpli 
70, Old Brond-street 
Roynl Exchange-buildings 

81, Throgmqrton-stroot 

82, Old Brond-street 
8, Wnruford-oourt 

21, Threndneodlo-strect 
2, Royal Ilxchniige-buildings 
IfiA, Tokenhonse-ynrd 
18, Throgmorton-street 
C, Wnrnford-comt 
5, Copthnll-conrt 

2, Drnpere’-gnrdens 
85, Greslinm-hoiiso 
78, Old Brond-street 
77, Old Brond-street 
21, Thrcndnocdle-strect 
21, Throgmorton-street 
2C, Austin-frinra 
89, Throgmorton-street 
II, Wnrnford-court 

17, Throgmorton-street 
14, King’s Arms-ynrd 
1C, Throgmorton-street 
11, Roynl Exchnnge 

80, Cornhill 

70, Old Brond-street 

18, Old Brond-street 

81, Old Brond-street 
4, Wnrnford-conrt 

4, Roynl Exchnnge-nvenno 
Crown-buildings. Old Brond-strci 
14, QnconTictorin-sti'eet 
75, Old Brond-street 
2, Wnrnford-court 
2, Drnpcrs’-gnrdens 
17, Anstin-frinre 
1, Shortor’s-eonrt 
Oa, Austin-il'iiu's 


Anderson, H. D., & Go. 
-Blookoy, A., Groig & Co. 
Briglitwon & Co. 

GciTord & Co. 

TVhito & Shnxson 

21/ Biroliiii-lniio 
713, Old Brond-streot 
8, Pincli-lnno 
n, Ncwuiim’s-conrt 
8, Qcorge-jnrd 


Adelnido Mniino Assiirnnco Coinpnny 
“Agricoles” Firo Tiisurmice Comiinuy 

of Pnris . 

Alliniico Mnrino Iiisnrnnce Company... 

Australian Lloyds . 

Australian and Now Zealand Under- 

miters’ Assooiation. 

Berlin-Cologno Firo Insuraneo Com-- 

liany of Berlin .' 

Commercial Marine Insuraneo Co. ... 
Commercial Union Assiimnce Company 

Do Bernales & Co. . 

Frey, A., & Co. ..; . 

Hayoraft & Gilflllnn. 

Hay, J., & Co. 

2, iSt. Miclinol’s-lionso, Cornliill 
|4r., .IC, &47, Coniliill 

2, .St. Miclinors-lionse, Cornliill 
I 84, Lcndenlinll-strcct 
14.'i, 40 & 47, Cornliill 
2, St. Mieliael’s-lionsc, Cornliill 
19 and 20, Cornhill 
St. Mioliaol’s-boiiso, Cornliill 
8, Black Euvon-coiirt 
8, Great 'Wincliostor-strect 
11, Londenliall-street 

Homo & Colonial Mnrino insiirnnco i 

Company .18> J*®!"' Exolinngo 

Imperial Insurance Company. 1, Old Broad-street 

Jones, R. G., Price & Co.1, Chiiroh-coiirt, Olement’s-lniic 

Life Association of Scotland. 0, Lombard-street 

‘Ditto .48, Pull Mall 

Lion Firo Insurance Company ... f,, Lothbnry 
Liverpool & London & Globe Insnr-1 
anoo Company .17 & 8, Cornliill 

Llnyrl'H .. . 

... Royal Bxelmngi 

London Assuraiioo Corporation 

. . 7, Royal Bxoliai 

Mnrino IiiBuranoo Company ... 

. . 29, Old Brond-s 

Now Zealand Insuraneo Company 

... 84, Leiidenball-i 

Paris Underwriting Association 

... IS, Cornliill 

Potter Bros. 

18 , BUlltor-stre 


Asburst, Morris, Crisp & Co. ... 

... «, Old Jewry 

Barlec, B. H., & Burgess 

... 9, Finsbuiy-eir 

fi, Victoria-stre 

... 5, Broad .Snnet 

Clift, Fredk., LL.D . 

... 111 Cl 1 i 

Crump, IV. A., & Son . 

... 10, Pbilpot-lniii 

Gedge, Kirby, llillctt & Jlurso 

... 1, Old Piiliieo-y 

Kimber (Henry) & Co. 

... 79, Lombard-s 

Lake, Beaumont & Lake 

... 10, Now-sqnarc 

Lane & Monro . 

... 11, Queen Viet 

Leonard, H. S . 

... 5 , St, Petcr’s-a 

Norton, Kosp, Norton & Brewer 

... (i, Victoria-stre 

Ditto . 

... 21, Colemnn-sli 

Ditto . 

... London Bridgi 

Parker & Co . 

... Rectory House 

Prideaux, W., cS: Son . 

... Goldsmith’s H 

... 2, SuD’olk-lano, 

Eumnoy, Howard . . 

... 18 , Walbrook 

Shopboard & Sons . 

... 1,.’, riii'-bnn ' 

Taylor & Son . 

... I’iold-eoiirt. Gi 

Terrell & lloiioy . 

... 70a. Aldermin: 

■\Viiltou8, Bubb & Walton ... 
Watorhonso & ■\Viiitorbotbnm.... 

... Leiideiiball Ho 
... 1, Now-eourt, 



Chaplin, J, 0. ... 
Oom'tenny, .T. Irving ... 

Home, H. W. 

Shadwoil, L. L. 

3, Tomplo-gardons 
7, Groat Wincliestor-strcet 
1, New-sqnare 
1, Ncw-aquarc 

City Carlton Club 
City Liberal Clnb 
Junior Carlton Club 
Whitehall Club 


... St. Swithin’s-lano 
... Walbrook 
... Pall-mall 
... Parliament-strcot 

Drivers & Co. 

Fox, (Edwin) & Bonsfiold 
Harvey & Davids 
Lnmloy, E. & II. 

Smiths & Gore 
Vigors, F.&R.& A.... 

1, ■Wliitohnll 
09, Grcsham-strcet 
115, Bishopagate-streot 
ill, St. James’s-stroot 
10, ■Whitohall-placo 
1, Fredorick’s-placo, Old 


Brassoy, Thus., Sl.P. 

Croll, Col. 

Johnson, Jlattlioy & Co. 
Justice, Philip S. 

Maokenzio Bros. . 

Matlicson & Grant . 

Ilansomcs & Rapier ...‘' ... 

Wallis, J. J. 

■1, Great George-strcct, Westminster 
Wool Exchange 
78, Hatton-gnrdoii 

82, Jlark-lano 
32, Walbrook 
u, WcBtimnster-chambeni 
80, Cannon-street 


Champion, T.171, Queen Victoria-street 

Ooslctt, A,, & Co.20, Soho-scpiaro 

Nioholis and Clarke . ... 0, nigh-stTOt, Shoreditch 

Patent Chrarao-Enamellod Glass Co.... 110. SouthwarV-strei.s 


Chandler, Pixley & Co. 
Price, Waterhouse & Co. 
Qniltcr, Ball & Co. 

If), Colcman-strcet 
‘I'l, Grcshara-strcct 
5, Jloorgatc-strect 


Hays, Alfred. 

Keith, Prowse & Co. ... 

... 1, Royal Exchange-bnildi 

... 48, Chcapside 

... 38, Old Bond-street 





■ Boot, A. & Son 

Blndes, Enat & BIndca 
Cnuaton, Sii* J. & Sons 

Darling Ss Son. 

i Dnwaon, W. & Sons ... 

i Donnison, John & Son 

i Fenner and Appleton ... 

Fourdrinier, Hunt & Co. 
Good, Henry & Sons ... 
Hazell, Watson & Vincy 
Herring, rowick& Hardy 

.ludd & Co. 

Lepard i Smiths 
Merritt & Hatcher ... 
Spalding & Hodge 

Spicer Bros. 

Spicer (James) & Sons 

Strnker Bros, i Co. 

Straker; S. li Sons ... 
Truacott,[Ja3. es Sons... 

Unwin Bros. 

Wnterlow & Sons (Limited) 



Wyman & Sons 

2.1, Old Baiioy 
n, Abehurch-lnno 
.(7, Eaatcheap 
SD, Eastcheap 
M8, Upper Thnmes-street 
20, Wormwood-.strcct 
77, St. John-street 
■ Lndgnte-squore 
12, Moorgate-strect 
0, Kirhy-street, Hatton-garden 
31, Walbrook 

St. Andrew’s-hill, Doctor’s-eommons 

29, King-street, Covent-gnrden 

2, Grocere’-hall-court 

147, Drnry-lano 

19, New Bridge-street 

flO, Upper Thames-street 

35, Camomile-street 

124, Fonchurch-street 


1094, Queen-street, Chenpaide 
25, Great Winchester-street 
49, Parliament-street 
Newman’s-court, Cornhill 
325, High Holbom 
74, Great Queen-street 


. Advertisers’ Assooiation (Limited) 
Amerionu Investment Trust Co. (R. 
Hose, Secretary) ..; 

Analysts, Society of Public ... 


57, St. Paul’s, churchyard 

8, Throgmorton-avenuo 
79, Great Tower-street 


Ditto ... ..; . 

Bonskiii, Thomns ... . 

Bouvorio, Tlio Et. Hon. E. P. 

Cannon Brewery Co. 

Carlisle & Clegg .. 

Carr, J., & Sons . 

Carr, J. T. 

Central Nows Office. 

Chubb & Son. 

Church, Arthur H. . 

Colls & Sons ... . 

Colonial Co. 

Coubro & Potter . 

Council of the Corporation of Foreign 


Cow, P. B., Hill & Co. 

Creditors Assooiatiou of AVIioIosalo 

Dealers . 

Crown Perfumery Co. 

Eastoni Agency (Limited) . 

Editor of the Review . 

Edmundson. J., & Co. . 

Foreign and Colonial Government 
Trust Co. (E. B. Eosc, Seeietnry)... 

Gray, Barrow & Co. .. 

Green, (Prank) & Co. 

Gregory. & Sons . 

Hampton & Sons . 

Herbert, E. (Central News). 

Hindley, IV. H., & Co. ... ... 

Hughes, Pi A. . 

Hutchinson, A., & Co. 

India-rubber & Guttn-perclin Co. ... 

Institute of Surveyors . 

Jacobs, A., & Sons ... . 

Junior Army and Navy Stores 

Kingsbury & Co. 

Kino, A. M. 

Ditto . 

10, llark-lano 

St. Srargarot’s House, Vietorin-street, 
IS, Old Bond-street 
Castle & Fnieon Hotel, Aldorsgato-st. 

17, Jroorgato-stroet 
100, St. John-street 

2, Great St. Tliomns Apostle 
14 & l!i, IVnrwick-streot 
128, Queen Victoria-street 
70, Great Tower-street 
63, Sloorgate-street 
10, Leadenhail-streot 

18, Billitcr-streot 

0, Artlinr-strect-oast 
97, Cheapsido 
9, Pencimroli-avenue 

7, New Inn 

19, Great George-street 

3, Throgmorton-strect 
23, Pudding-lane 

193, Upper Thames-street 
2, Knightridor-street 

8, Pall-mall-east 
22, Jloorgato-street 
02, Queen-street 
44, Mark-lane 

4, Great ■Winohester-strect 
100, Cannon-street 

12, Great George-street 
8, Enssoll-street, Covent-garden 
16, Eegent-street 
Lombard House, Georgo-yard 

20, Ludgate-hill 
40, Loinbard-street 

Lance, George. 

Land Loan and Enfranehlsomont C 
London Finaueial Association 
London Stereoscopic Co. ... 

Lord Mayor, Tlio Et. Hon. Tlio 

Ditto . 

Mercantile Trust Co. of Now York 
Now Zealand Shipping Co. ... 

Nissnm Fiord Co. 

Panish, Dillwynn ... - ... 

Ponfold, J. 'W. . 

Peruvian Guano Co. (Limited) 
Pullman Euroiionn Cur Association 
Pullman’s Palace Car Co. 

Eailway Debenture Trust Co. 

Eedwood, Bovertou . 

Society of Arts . 

Street, Geo., & Co. 

Thomson, IV. S., & Co. 

Thornhill, AV., & Co. 

Tramways and General AVovks Co. 
AVaikato Land Association (Limited 

AAVd, George. 

AVhitc, J. B., & Bros. 

AVigner, G. AV., F.C.S. 

39, Coruhill 
87, Eegent-street 
10, Philpot-lano 
22, Great George-streot 

1, Drapevs’-gardons 
54, Oheapside 
Mansion House 

0, Lombard-street 

84, Bishopsgatc-street 
8, Drapers’-gardens' 

2, Copthall-buildinga 
29, Great George-street 
57, Old Broad-street 
57, Old Broad-street 
St. Pancras Station 

4, Bank-buildings 

85, Graccchurch-street 
, Adelphi 

, 80, Cornhill 
97, Cheapside 
, 144, New Bond-street 
57, Moorgato-streot 
34, Lcadenhall-atreet 
1, Bell-yard, Graccchurch-street 
85, Graccchurch-street 
79, Great Tower-street 




Agents required In Unrepresented DIatriots. 

L I O 





Edison Electric Light Company Bulletins 

This bound volume contains twenty-two bulletins issued by the Edison 
Electric Light Company during the period January 1882-April 1884. These bulletins 
contain brief accounts of the activities of the various Edison light companies and 
of developments In the electric lighting industry. Included are testimonials from 
Edison's customers, lists of customers and types of equipment offered for sale, 
annual reports of the Edison light companies, and reprints of articles from 
newspapers and journals. 

Much of the material concerns the central power stations at Holborn Viaduct 
(London) and Pearl Street (New York), as well as other central stations and isolated 
hghting plants in the United States and abroad. The bulletins also contain 
Edisons exhibits at electrical exhibitions in Paris (1881), London 
(1882), Chicago (1883), and Louisville (1883.) Other items describe accidents 
caused by gas lighting; offer cost comparisons between electric and gas lighting- 
and compare the Edison system with competing electric light systems, especially 
those of Charles Brush and Joseph Swan. There is also information regarding the 
formation and operation of the the Edison Electric Light Company, the Edison 
Compaiy for Isolated Lighting, the Edison Electric Illuminating Company of New 
Yojk, the Western Edison Light Company, and the Edison Electric Light Company, 

I oo stamped "The Edison Electric Light Co. First Series Bulletins 

1-22 1882-1884. Each of the 22 bulletins is individually paginated. In addition, 
the entire volume is continuously paginated, beginning with page 49 and ending 
With page 5 ^ 7 , ° 

[tTon. 1 to E5.] 


The Edison Electric Light Company 

65 nmi AVK.NUL. ' 

Nkw Yokk, J.inuary 36tli, 1883. 

THE ZTBE QUESTION. We have received a |irinled copy of 
Ihc rules for running wires for electric lights adopted by the New 
York Board of Fire Underwriters, January irth, 1883. It is said 
tliat these rules will bo adopted by the National Board of Underwriters 
and will then be adopted by the various .State Boards and City Ikjards 
thoroughout tlie country. 'Hiat is to say, these rules will be national. 
They have been prepared after elaborate considtation with ourselves 
and the other Light companies, and arc on tlie wliole as fair xs we can 
expect for the present The many fires tliat liave occurred from the 
arc light have somewhat prejudiced insurance people, ,and we must 
suffer in coiiseiiucnce until tlie superiority of our system is establi.shcd 
by practice. 'I'hc presidents ofseveral insurance companies, notably 
Mr. JCdward Atkinson. I’resident of tlie Boston Manufacturers Mutual 
Insurance Co., have visited us and made a careful c.xaminatiun of 
our system. In all such cases we have .satisfied parties of the complete 
success of our system xs regards tliis question of lire. It only remains 
now for us to wait until other insuiance people who visit us may be 
satisfied from the practical success of our light that there is absolutely 
no danger from fire. ^ 

BANTIAOO, OHTIil. Wdhave letters from »Mr. Stewart, Santia¬ 
go, stating that he hxs with] the assisuince of Mr. Lawrence, the 
engineer, installed a Z dynatifc in the Variety Theatre in Santiago, 
and that tlie plant is giving t||i highest satisfaction. 


.0 visitocl ihe nrc ..u.ct. pleased w.ll. the l-d son l.ghi ^ 
:;;t: , ..,,cror, d.. of theO.undl of Mln.s.ers, and 
: Xc'ung Minister of Pnldic Works has seen the light, as wtd ^ oj^^er 
„„.,ant men of the Kmpire, all of who,n have expressed the.r satts 

A»a:BI0AK ELZCTBIO LIOBT CO. This new company U 
„v snen.iing a vast amount of tnoney in, an.l ts reported 
L-; imt to light up abuilding in Boston. We have ptst hatfa 
aring on one interference tn the patent ollice w„l. tins companj 
nnelv, upon a claim by Boeb.n that he was the mventor o 

eeruin Ltnre in a mercury pump used .. tne-andescen 

,„,,s Testimony has been conelmletl it. that interference and 
.«eut oflice has tiecide.l against Boelnn. an.l it. favor of led,son. 

' Tbe Xtnerican Cotnpanys s,-called lamp is tna.le of twy parts In ed 
ugether like a gla,ss stopper it, a bottle. The theory ts that when the 
^ i\-irk to ilic fuctorv, taken ujwrl* 

arbon breaks, the lamp can be set • 

a new carbon inserte.l. But these two parts of the lamp, tmf 

unatelv, are not interchangeable, and, besides that. * 


parts tnust always be kept together, because the lower part of a ) 

Le latnp will not work in the upper part of any other lamp, 
trouble arising from that, when manufacturing of the lamps ts c^ 
ductedonalarg, sc dc. together ; 

new style of'.socket gives otit, cither from being 
im[>erfect cunuict Also tiuit the joints in ructiires 
Also tliat the wood collar between the conne-cling 
cover of the standard socket .ahrinks so muc 
slantly ilropping out of the .sockets. These i 
brought to the attention of tiie manufarturer. 
promiseti. Will our agents please report if futl 
pcrienccd ? The maiiufiicturer especially dcsii 
there are nn|icrfcctions, the im|K'rfect goods .shoi 
liim in order that lie rn.ay see for himself just v 
Our agents will therefore please send back til 
olTicials all imperfect goods. 

BLIGHTS IN loAKOE BOOKS. Here is a si 
IloKiiEN, of Fall River. Some of our .agents 
views oil the same subject His suggestion is i 
the pur()Osc of encouraging discu.ssion on this in 
'•As you iwkwj (or suggoitlous ilmwii from tl 
your agiuits I lieg to o(rur tlio following. I think 
about 11 lights In n cotton mill, or other large nnin 
nioro of the electric light than any other rnuuni 
they are always (llsn|iia>lmcsl with B llghu. Mr. 
Wainsutta Mill. Is taking all his out to-<lay. anil 
A lights to replnco them, having onloreil Mid 
enough lights to take them. Oirtnlnly. nt tho Wn 
night, four looms were lunch better lighteil by ono 
looms by ono B lamp. Wore my eyes to Judge. 1 
deeldo I A lamp muoh moro effcotlvo than ‘d Bs. 
Mills wo havu to eompoto with good rosin gas. and I 
to thccomiHitItion." 


r. .ScHKOKDER, wriliiig from the Mcrnm;itk Mills. Lcmgll, Mass.. 
;t)ruar)’ 15th, says "Kven- tliiiiK iii connection with the electric 
'ht in the Merrimack Mills is in first rate comlitinn. anil I can 
ggesl nothing to make it better. We have had no tnishap of any 
ntl and Uiere is no occtsion for any. The two dynatnos do their 
ark equally and require scarcely any care.” 

EUROPEAN COMPANY. We have iindetstiKxl for some titne 

inintmtinn of Hftllronilfl. uiidurtlio Hiil oflho ToloKreph Comp* 
•r. 3Ir. Ki!L'i.7.i; mill UIh liilondwl. huMmwHjut-ncoof IlHjfnvnrnljlo 
in iillulnwl »iy tiilrt tni'llmd of llluinlnnlloti, to uxtomi It lawly. 
i>«(<rvo ii inoro {wirtlcular dcrtoripllou of iIiIk ii'JW «>4tn1>llB)inirnt, 
her with iiti (wtliimlo of lu* cohI, imtU aftor Iho furtluT oxtontlon 
dy In Iminl U comploUHl. In ccmehmion It nhoulil ho iiH-ntionoU 
Iho inerit of Ilntl hnving Iiitnxluco*! mi firnmnenn-nl of thin klml 
□onniinymid Iwyond, Ib duo to Iho Iinporlal Gniond Admlidn. 
Ill of KnUroiid." 

bust M-nv to hang Iain|iS. ' 
who has charge of putting a 
Lawrence. ^luss, wdl in thii 

A.TMOSPHEBIO CONDITIONS. In a letter rcccivet 
N. Stkwakt, in charge of our isolated plain at Sant 
sntion is made of certain almosphenc conditions u 
crc-st 1 (luote from Mr. SrKWAkTs letter. 

••Santiago Ib l.fiWi fwfl alnivo the Hcn. mid for live (»ri 
3f the year Ihoro 18 no mill and hardly a cloudy daj. Th 
iightning 1 h unknown, but Blight nhookH of eurtln|uako are f 

oiMrratortt to gel their opin 
were of ono mind, that It Ih 
near one 0}hr/ni 

Iniltding could not Ui doteet 
celling iri high tlo* vlhratlon 

LONDON. The following cable was received, Februar)’lolb, from 
ondon. It refers to a visit made bv the sender of the telegram to 
[r. Jolinson's plant at the Molborn Viaduct, where one of Kdison's 
intral dynamos is being run. The cablegram is as follows: 

••I had a very Iniluoiitlal party at nullxint Viaduct last night, con* 
BlHthigof Duke of Sutherland, Maniulsof Ormonde, Lord George 
Jlainllton, JI, I'.. Major Ooneral Sir Arnold Kimball, Major General 
Sir Henry Green, CapUiIii Shaw, C. B., Chief of Ix)nUon Fire Brigade, 
ProfoBBor Forbes, BlrCborlofl Brlglit, Mr. Peter nodpolb, of Montreal, 
and Mr. Fuller, of the direct U. B. Cable Co. The whole party vtiito 
highly delighted, and exproBsod their warineBt commcndatlonBto Mr. 

lam[» will give sullicicnt ligl 
Mr. Clakkr prefers one A 1 
where we liavc placed ilic tir 
give less satisfaction than ili 
ting in jwrcclain shades in j 

US that there i.s no unusual b 
up too high, or unless the ct 
unifonn that the rule is well 
regular and if the lamps arc i 

LAKPS. A complaint having been inauc that me lamps 
i long under somp circumstances as under others. Mr. 
l»arge of the lamp factor)' at Menlo Park, made the 
ntnent u|)on the complaint We quote it for the benefit 
addition lu him fur whom it ^vas wntten. Mr, Upton 

light tiinttho liuiiiM were not IntcmUNl for, I. o. 

•r, in nninr to glvo lirlllhuit ofroct«. Thwo oir«t5t« lihouhl 
hy the iKhlltion of inoro Inmprt. Our 27 liimpH put up hero 
going to nvonigo 1,000 honra. Hlinply hoc^nuso wo k(H*p 
i til 1C uindlo |Hiw«>r. and don't work tho Ilfo out of them 

10 llghl U not oxtroixlhigly great. • • • Kuoplng tho 
>od condition 1 think hiiH hoiuo effoet. 1 Mlovo 
Httkilon where there urn Hevi'm) nmchlncH iitul 

The Hdison Klectric Light Company. 

65 nri'H AVi’:.\UK. 

Nkw Vckk, February 24tli. i88j. 

unOcr-Krouiul scTMti; l><).'ce.s iii |il;int.s fur central sutiuns, Mr. Kki:f-< 
111 urilcr to test the msiil.ition has liail a service bo.t with connection 
ami iiilies complete, as used in practice, immersed in water for llirc 
months, and the insulation is unchangetl- 

Its follows from I’hiladelphia, I’chrtiary lyih, about our isolated plan 
running in the llaldwin Locomotives Works 

• Tlio lights are ruimliig nil right nt Ilahlwlii n. Tho ilyiiniiio him 

pany’s Slio|)s, Chicago. We have received a record of the daily break¬ 
age of lamps in this plain, beginning November aind, and ending 
I'chruary 1st. together with a statement of the causes owing to which 
lamps gave out The record was correctly kept in writing day by day 
by the Rolling Stock Com|)any themselves. The net result shows 
600 hours life forBIam|)3 of hightvolts, and with old sockets. The 

"Tlici UiiltstI StntM nollliiK HliiL'k Inniiw linvn »linwii n llfo nt liOS 
h'tun* fnini NovuinU'r Sdiiil, IKMI, to Fcitninry IStli, Iiu'IiimIvo 
TIjorn wan no bronkntin fnini Ft'liriinr.v IhI to tlio Kith. Tlio ilyiiniiio 
lr« ('nrryiiiK n hm<l of 137 II IniiijM. Tho plant 1 h (tlvlntt oxci'llpiit 

BUNNINO WIRES IN STREETS. Tin! City C.ovcrntncnt of 
nil Hiver i^ssotl a rcsolniion, February full. rcfii.iinK to |)ctinit any 
le to erect iwlcs in the streets for carrying' electric light uires. The 
rgislature of Ulimlc Island have under consideration a hill for the 
ate of Rhode Island conuiining the same prohibition. 


r. Fnisox has a one hundred candle jKiwer incandtaa:cnt lamp 
lining at the laimp liictory at .Menlo Park. It reipiire.s i to volts, 
•me arc being made for l.ondon. Mr. Itnisos will now make some 
qiiiring a less number ol volts to be run on otir machine at No. 65 
ifth Avenue. 

entire amount tif capital of the Kiiropi 
million five hiimlred thousand francs, v 
NcgotLitions for the purchase of a Cicto 
and the purchase money for that (indepe; 
(laid. The railroad depot at .Stnishurg 1 
the evening of January 5th. A contrac 
for Spain. 'Hie projiosed cnmismy for tl 
a capital of twenty five million of fran 
received at P.iris from Russia for the li 
coming coronation of the Czar. .An a 
Piris for lighting up the Wc-stern Raiiro 
Ikitchclor will have charge of the manuf 


miles of street mains have thus far been 
tricl. 'ITic bad weather caused a su 
nc-arly a month. About six miles nion 

EDISON’S ELECTRIC RAILWAY. The electric ItHromotivc is 
lished and is on the Ireck at Menlo Park. It has been run over 
e track and give's satisfactory resuites. The lassengcr car built by 
T.vcNSOX is also "on the track. The armature of the locomotive is 
c armature of the Z or 60 A light dynamo. Mr. Ktilsox is now 
instructing also a freight locomotive and freight cam. This nail 
.Menlo Park is built acioss the country back of Menlo Park, and is 
lOut two and a half miles in lenght. It is well graded and will 
for a practical illustration of the Edison Electric Railway. We 
n mail, on request, a copy of a pam|ihlct, a reprint of Mr. 
-akke’ s a’rticlc of December, tSSo, on the Edison Electric R.ailway 


third mammoth dynamo hasbecti cotiipl 
to ".iris where it was used during the I; 

Edison laindon Company, in the llolbc 
third one, now completed, also goes t' 
s.itisfied with the improvetnenus in these d 
the work on the uncompleted ilynamos 
city. Six will be finished first, and after 
Street building, another si.x svill be fi; 
adjoining building, which also belongs tr 
to be u.sed in the first district is compic 
registers with almost absolute exactness 
advantage over the existing gas sj-stem, 1 
one of looseness and nr 

IMPERFECT FIXTURES. CotnnlaitU has lieeii made of it 

bucoess of isolated plants. 

ton 1 h aIhiuI 18 coiiU ]Hjr hour for ttin 

In conclusion, 1 would atty Uiiil thu 
on boanl of Khiiw cnn only bo Appr 
thoso ndvanUvK«« prliicl|ml nro cm 

1. Economy. ThollKhtdcMM Jiol n 
dunt for trimming, llKhtluK. etc., mtd 

2. Fnfotloiu from ilnuKcr by lire; m> 

3. Vcntllftllon. It 1« not m-ewHAry i 

''.'ho advuntagu of a non>«inolllng I 

Ikm btdng rc<|ulrc4l. 

Advising EiiBlncor of Oregon llnllwny nnd 
Navigation Coini>uny lunl Oregon nnd 
TroiiBoontlnuntAl Cum|tnny.“ 

a year ago, Messrs. Minds, Ketcham A 0>.. lithographers anil print 
of colored labels and show cards, mtruduced the Edison light ii 

wimlo «x|>on«« Inaldu of two yenni, and nfOT that Is done 
enco will {my Uio entire ox|Mnifloof lighting iny premlsoa at 
a tiamlAomu amount annually bonldes. 


WINONA MILL COMPANY. Tliis plant is in a 
and is the first establishment of the kind ever lighted by 
cent light. 'I'lic letter s|)eaks Uit iuclf. 


ho liicnii(h«i*<'iil oloctric Ih hottor tliiiii whIHi Ih linhlo to Ih) 

by puHHing cIoiiiIh. Tho nbnvnro of hrnt !»• Aimtlivr vnliialilo 
[imlfty ill llilM AUIioiikIi tlio IltUo |Hvir>MltajM>«l ghilMwi 

tig Uio lIgtiU uro Hllghtly mirni to tlin tourh thoy nullnto hut littTii If 

ir Uvolv<Ml(yn>o<i hy tliu llghthig of thogtui. Ih not ltinuriM‘4>«| hy tho 
!(V2 uloctrio lighhi. V|moi upiinmeliiitg n I(niiu iuhI oxniiiitiltig tho 
vork ill proi’uoH. It nppi'unt tiint ovory ovory lino <»r tho pnU 

HirfotrihinH am quickly nulicod aihI iih quickly roiii<*iiiiMl. and It would 
iLHMii that tho o{H5r»tlvi*H «;ould d«»Hiro no more iN>rf«H't light :i liolp 
hoiii about thoir work. A {virtlcularly notoworthy f**iiiuri> of thu 
h!»llH<iii Company Ih tho syMioin of ••Hbii!*out'* iMnploy4«d whorovor 

fiiHlblu balden wire in iiioUihI nt titii tnatniit tlm iimtii or 'bnuioh wln«« 
»<H*oino eroHHcMl or In contact with any cmiductlng Hulmtaiico. averting 
ill danger fnnn lire rnnl ennhting tho roniimtiy to innko u gunraiitott of 
lnTb*ct linniunlty In that roap«*<‘t. Vot aiiotlior iHHuilInrlly of tho 
.'onipany Ih that In their HyMoni for lighting tttwim or cItUoi. for 

InnuMtlc or buf*lni 5 HH piiriMKHM. all tho wlrw nro t*onvoy<!<l under 

made At any {Kdiit doHlnxt. For hoiiHO or ofllco ilho, iiiotcra nro provhb 
ixl to inuAHuro and rcglHtor tho current, and any Hliiglo light tuny Im 
QxtlngulHhct! by a turn of thu hand without effecting tiny olhuni thnt 
nino Im) 111 luio, and iimtantly relighted In the name mutiner.** 

3ND0N. We have been shown a letter fron; Mr. K. Kicnnl Scaver, 
K. S., of ICtiinburgh, datcil I-ontlon l‘*ebrHary SlIi, 1S82, from 
lich the following extract is made. 


3 '^ 

3 :' 


before ;i s|>ccial committee of. the 
ing the pnqiONed legislation in 
comjKinieb to put their wires undi 
light coni|unics were rcprescntci 
Kdison company showeil samjile 
ductors, and sutctl that the 1uli.s< 
{xrsed legislation. .V represenutt 
at tho hearing, tlmt it would be 
iindergrouiut conductors, for the 
dilTeicnt kind of electricity, of f.i 
rec|tnred lor the arc light, from 
Incandocctu IJght, and that the 
ditfcrent kind of electricity undci 
die \-aM iuiml>er (»f fires C4use<l I 
the fact tlwl over eighty fires liavt 
.ilunc, by .arc lights, many of wli 
railruid dcf>ut in coniic'ction with 
the other land, it was said (and i 
electric light is now burning in 
buildings in the United States, ar 
the United States, there has yet ti 


station district in this city, has l)ccn resumed. Mr. 
v laying: about a tliousand feet a day, and the work will 
rward with all [nssible energy. 



The Edison Electric Light Compan} 


all *tockhoMcn, lo jjivc th:m infomiation of ihe |>n>jrrej.s of ihe Company 
other niaiten of greater or less inlercit connectctl with electric liKhtlng. 

IKnitti of ('cneral inierett may he developed by their experience In instal 
o|x:r»tinj{ our liKht.) 

New York, March 17th, 18 

AT PARIS. The cr 


It wiw nl,<n HUitwl that thi> IMIhom ('iinipati,vlKiii>u’<'<|ui|>|>liiKa<ll»lrlitt 
of It nillu wiimru In Ntnv York city, whcro tho l•ll•l•l|■|l• iMirroiil will all 
ho hont throllKh fiuhlorrniiiuiri cnhlm hilii In Iho Hircnta. Irioii n aliiKhi 
cwiirni sintion, whuru It l« (.■ciioniti-l. In thin ilUtrlct ih-y hnvo 
ultonily wlrcl for tho KiIImiii hoo|> lllli hiowo, BUBn-KiitlnK- 11,311 
KiIImiii Inonmloocont h>ni|w. Ilothio ll|;hi, tho noiipniiy nlll nloo 
Holl olootrlo iK)«'t?r for dionootle anil lixlilsirlal |»nr;-oxfH. Tho roalrlo. 
tlonx jilnoixl n|x<n tho piitlloB op of |oilo< mol iko-ih In Now York 
oily, Clnolnnail anil oihor olilot worn mail, also tho ruli~<of tho lloaril 
of Flro Uiolonvrllom In Now Y’ork city mol >fioiHachtiiiottri In the two 

ELECTBIO LIGHT AND ACOUSTICS. It ia «iil that a iiiarkc.1 
iioitnivciiicnt haa been nntitieil in the aemiatie piii|a;rtv of tlic.itreii 
where the electric li);ht is nseil. A layer i.f lie.itcil yases act as a 
screen for sonnil, hence the viiliirnes of hot firnres arisiny frnni the 
oltl yas fijoi-liyhts (ibslrticteil ainl rn.irreil, to sinne extent, the mices 
of the sinyers. With the electric liyhi. incluseii in air-iiyhi hullo, no 
fumes can he emilteil, ami very little heart is yiveii oil'. Hence it 
benefits lire ear as well as the eve. 

wircil the lleralil Ilnihlinc for l.iin|o. Tho ilynarnns will In; 
placeil in the Henneit Unililiny, corner of N.ass.iii anil l•■|||lor^ .'Streets, 
and the current there yeneratecl will he taken np .Ann .Street in the 
I-ilisiio underground conduclors, n. the Herald Ihiilding. .Mr. 
iiennett is ex|)ccled hack from Kuroiie in a few weeks and the build¬ 
ing will not be lighted np until after he returns. 

extract is from the 7'’ii// Hivcr l/iiity Snn of .March loth. 

olocirle light wan hohig prinhieeil, tho wrlior uempiisl an Invlintlon 
from the nmnngeoi of tho light In this phieo a Tow ovonitiga altioe anil 
prococslcsl to the I’ocmsset 11111 b. In tho weatern hasomorit Is Btatlon- 


The iihovo cKtracU coming as they do from perphaps the leading 
(ia> Journal ol ilic world, arc especially interesting m showing the 
change ol tone iti whieh such journals now speak of the incandescent 
electric light. The tone is m.. longer llipi',aiit and skeptical hut full 
uf tliiiughtfuliiess and alarui. 

(ILson I'lk'ctric Muter, for iiimuriiiK curri:iil of vlci'lricil 
> ci'iisuiMi'rs, lliu Kline n.s is inensureil liy the thnuKinil 
nrkinj; siiceessfiilly. A liirKe iminlii r are iniw lieiii); m.ule 
earl .‘Street .^laliini. 'I'wemy Jo liylit meters anil live 50 liuli 
rs have recently heen shi|>|ieil tu I.i<ni|i>n ti> he iiseil inconn 
itii tile small central station plant installeil on the llolhotn Vi 
he meters are entirely reliahle, in fact they may he saiil 
isoliitely accurate, lieint; va.stly superior in accuracy to tli 
listing giLs meters. 

Wilkcs-Ilarrc lti<oril st 

ilway station at Kioile Janeiro, llm/il, isnou lighteil with an 
rjlated jilaut. Tile lani|)S are ilistrihuleii to light the pi; 
aiting rooms. Directors' room ami llie entnince. The Di 
III others coniiecleil with the railway company are well pleasi 
imrnission has lieeii appointed hy the Kngineer's C'hili of 
port upon the light. We liave received a copy of the pr 
rw.spaper of Kio. calling attention to the displ.ay of the light a* 
ade at tlie railway station under the superintendence of tin 
the Railway Telegraph Deiiartmeiit. and e.vpre.ssing coinplc 
action with it. Tlie .Minister of Puhlic Works was expet 
akc a visit of iiisjiection the succeeding week. 

EDISON LIGHT m FINLAND. The following cahlegr 
ive to the ICdisoti isolated plants just started in the facto 
iniinerfors, Fitilanil, wa.s received March 171I1; “Light insta 
itude 61. Perfect success." 

DANGER FROM GAS. Tlie gas house of the Wilkcs-Iktrr 
ompaiiy was demolished by a gas explosion, March full. 

Sen.ur hulioiaiv I oininiULM- »if tin* KImhIi- l>Liml Lcj;islaliirr Ims 

cf>nij..uiifs to place ilair contlutlors under llie ground, in Rhode 


TO BE INCREASED. The new cnKine 
in lla- wliolesiile ^rrmery Mine ..I Mmipi. II, K A K It, Thiirhcr A 
I ... .Vc«'^'iirk has lie.'ii pl.iccit m positidii. ami ihe li);ht is 

tjiiiin; smh K' snl s,ilisfactiun llial ihe firm has orilvtcil an aildili.inal 
.lynaiiK;, which will «hiuhle the present number of lamps, ami make 
them sniiicient to light the principal part o‘’the store. 

leieni l,iint|..n lein r that the Ihike of \Ve-liniiister. who reipiires 

n Hall is well know 

PLANT AT HOLYOKE. The .Merrick llrrearl Works. IloijoV.e. 

•Mas, . h.i- or.lete.l a plant of i a , It lamps. 

THE CRYSTAL PALACE AGAIN. The la.ndoli |«pels contain 

..ossio sisii 1,1 ihe I’rince and I’rimress ofWales 

*. •■■■S.I....I l..shil.nioii at the Crystal l*.il.ate. The 

..SS..1..11 of dieii visit published in the 

/ M 

htcfi^lorirf nfthc IHt'ciricu! Kxlittii* 
iM i>c the 

*«• lh;»t it wtrtjW «.|>;irklc u 



40 is bmps is iiDW running in ihi- .'• p..|in..r 
Co., the largiat of its kind in Uc-lgimn. Tljc p 
night until 5 i.x iti the morning. It lus given g 
111 consequence the firm desires anmlier lain.rv 
joo lights. 

low been btiriiing in the Orange Woolen Mill 
ast Septemher. Mr. ll.irrison, the propricMr. n 
if his bmps have been burning over i.ooj hoi 
nd .ire still alive. Me is highly pleased with i 
liat the dynamo gives him as little trouble as 

CAUSES OF FIRE. A mintber of the Icadii 
allies of Lomloii have been trying to discover the t 
ccur in dwellings. 'Hie firtmm’s /mrmilsays ; 
lat twenty |ier cent of such fires in cities are tli 
her light coming into contact with curtains or w 


E. & T. FAIRBANKS & 00 . 

; (lyiiaiim, 6:. .A I;im|i5. ni ilic si 

Si. Jiilitisliurr, Vi. 

Jwrcncc. the engineer in cinrgt 
lar. informing us of the contin 
liter stales that everything ap 
ghts worked well and giver 
here arc 5S lighl.s in the hotel. • 
irs, besides 1 A and 4 H lights 
I the house of Mr. Kendall, soim 

oni the I.solaled t'o!np.inv for the 
atikcc, Wisconsin, and is now- be 

rc|)ort, dated .M.ay 4ih, about on 
ailrreid .Station. Kin ilc Janeiro, 
that lime had been burning 7.S 1 
loss of only seven lamps. The li 
e entrance of the station, S in th 
s Itmmi, j in the Ladies Waiiiii 
oper, and i in the engine roi 
immission ap|H>inted by the Go 
d made an oflicial report, sliowi 
d rcprcsenicsi. 


w licing in>lalli.'il lor .Monsieur Crespi. Direi ior of the N'utionn 
nk. in .Milan, in a fielory near .Milan, Another jilant is bcini 
roiliiceil in ilie cotton spinning tnill of M. I’liiiti, also Milan 

CORNWALL, PA. .Mr. K. 11. I’olcmttn i.s now using one o 
ir isolated platiis at his anihiacitc fntiiacc. The plant con 
ts of one 7 . ilynaitto ;itnl ho lamps, ami the light is used in tin 
citing and engine looms, also in the ollice which is situated nearh 
o feet distant front the dynamo. 

e htive received the following letter from .Messrs. Jr,hit II. Stetsoi 
d Co., Hat Matrnlactnrers, evptessiiig their satisfaction with tin 
lismi isolateil plant trow in use in their fictory. No. 1.746 NortI 
lurth .'Jtreet, I’liiladelphia; 


pcct Mouse, nine Mounlaitt Lake, Aiiiroiulacks, N. Y. 
itrd witli a plant consisliti^ (>f two 7 . dynamos, 375 A 
75 H lamps. It is not intended that all of these lam 
mat once, the etpiivalent of 135 A lamps heiiit; th 
i to he run l)y the tw«j dynamo^. The boiler is firei 
y witli wood, which is worth tweiityTive cents a c«>rd. 
ni^lit the lamps were lij;hted, 135 lights were run si 
i only one »|uarlcr of a cord of wood, at a cost 

BOUtE, ITALT. A small Kdison plant has just been i 
ider the direction .if .Monsieur MeULrariiii. I*rolesM»r 'I'j 

;ived an oriler from the New Kn^dand Pin Company, V 
tr one K dynamo, and .^50 ten candle ptiwer lamps ! 
leir silk mill. The plant is to be insl.illed before Septem 

FINLAND. 'I’hc plant at Tammerford cotisistiiig o( 
nips ha.s now been running mure tlian four tnontks, and is 
iced that orders have been given ft»r the to he iii»Tc.iscil l 


my, l^•|«•tl,cfcct. R. I.. f„r iw,i I. ,|yn,imi)s witirr^s' '"h'm|)l”'" 

danger from gas 

D. 'I'hv plant ill the rulilk- lluiIllin^' prmxil sn s.uis 

:iiirv that aiintlier IMiiladdphia iu-ws|ia|ii.T, ihn VitUk /l„nr,/, ha 
ciilcd. to iiitriHliicv mir li};hl, ami lua (.'ivin iis an ■.niiT. 'I hi 
lilt will ciiii.sist of line K dynamu, J50 I,i,n|K, t . liL-lil dm ncii 

inn .V ('iinipaiiy have just isMieda new and eidartieil edithm n 
L'ir eatah>;;iie iif eleetrie hi;ht lixturcs hir Ininses. inclndilli 
retridier.'i, pendants, hall lij;hts, newels, a ureal v.iriely nf brack 
I ineliidint; .stationary, desk and swin;;ini; hraekels, liainl lamps 
rialile lamps and a larije variety ..I other a|ipliam:es. Theri 
: also designs of coillhiiiation lii;hl lirai kels for Inith eleelrii 
lit anil t;as, a feature to which the linn Iiavit ydven a ttood dea 
attention. We notice that they have dropped the use of ihi 
rd chandelier, and in its place have ailnpted the u'ord elec, 
lier, which is already in I'eneral use in Kiiijland to indicate an 
ctric liKlit chandelier. Copies of the cataloj;ne of .Messrs, 
ri'iiiann S: (.'oiiipany can he ohtaiiieil at their factory, ,N'o. loS 
loster St„ New York (.'ity. 





l-.ilison (;iiiii|iaiiy : 

^•A-EIS. Nic'.uit itroiiylu ill P.iri.s l‘>.i 
igiiiliM llirain S. Maxtin, lur inlVjiigi,, 

llK'aiiili.-sii-iil clivuii liy-lit |i:iu uts, lias l,f, n m.l. il 
iiislriii t,-.| the trial Mill take plan- iii N..v, rni 

■n™. ..ftha. M,„ in I,.-I,all'.,f,I,.. K,|.>„„ pa,.,.,. 

I’l'ilillct aii.1 Oscar Fal,.rl.i,i; avoials, .M, (;„jri„ av.aiO 
ArinfiiKainl, |>atcni cmmsi-l ami expcri. .Nii.litii.iial .xp,-r 
lUMt ill Hieniific circles, have u)s*i hceii rci.iini i|. 

FHINOEMZNT, LONDON. pat™, I,a. 1„ n, c 
HI I.«Mi(lim In- ill'.'Kilisnii (.'..mpanv ayMiii.i il„. Su in 
lie k'roumi that the- .S«a„ lamp infri.,,;., ,|„,. lalis,'!,!. n 
m-iital .,f iiicamic.scoiit lamps am at issin- in tin- s,i 
•rdiminary l.c-arinK pla.c ha-rum .Mr. Jnsti™ i lni,,. 
Illy .’.Sth. ami tliu .Su-aii r'oiiipani- uas unla-rctl l.v tin- Conn 
II ai d. lint,if their mamilacture of lamps in-mlin- the trial. 




IJ II l;mi|» li;is jiiM l.ciii insullcil in liic lli,<-limi>.clic.s, 
lighting ila- Cflhiis ami malt house of the lirrwcry. The folhming 
interesting ilescription of this insmlhation has been received from 

1 kilisiiii iilaiit ,,f to lamps ami 14 II lamps is pivi 
lisCictiuii ill ilic Szik.szay In ilm Kfrcptsi. I 
15 ilrivcii liy an engine- placcil in a Iniililing Hz,, mints 

KINaSTON, B. I. plant FOB twf BFAoVTsa 

near KinKSloii, Tw,, A lanip> will l,c placed ..vcr catli I.h,,,, tve 
il.K dark c.>l„r», and lw„ H lamp, where 1)^1,1 k<k..Is are made. 

C.ran i, uker, from a redeem Icier from .Mr. Rich, in charge of ihe 

' ‘ ■■■ *'■■■.fi'od.iig Ihe exhihiltort of onr Itgdrl now 

■•mg made in die l.oinTei 


DIM. Thefol 

M , -MILL Til,. 

- lanufaciiirinK CV,n,), A»m,sm. rccc-mlv scni v 

•I'-xpress Pnr„..c>.fi„veMi,a.i„,Ml,c.lin-„cn. 


danoek from 

cat.- comrc.lli.,K ,|.c,,,, |i(.|„ r„r I,.,|v 
the first ccmr..I station in .Milan. T|,, 
syinlitatc |Mi,l 3oo.oo'j fraiiLs. con,isis ol a hnil.liiit; 
Hnatre ol .--.i. Radot-oinla. Hi.- „,ain I,,11 ,,1, 

(■ovi-riimcnt of .Milan llavn alri.-ail\- L-ramcl to tli,. K, 

Tnliniial Director ..f the K.lis,, 
^ ork Citv siipcrvisiii); ihc- sl,i|ini 
•Milan. Tlirce steam .In.aiiu.r 

FAIRMOUNT PARK. I I,.- foil,, ,1..... r... 

A •••m|«,cenf.,„„o,l i„ir,.,l„cc ,l„.- Kdisr.,, 11^1,, i,„„ 1,,„„ 
rt'iiw?. The nflicers t»f ihc cointaiiv’ irr K K / i. i. 


i'llliwiiv, mill .V... 2. Ilolyukc, .M:i.«.. or..; 


Ill the rnoiii where re-ilistilliii;; is 
Mkes lire aii<l cxpIcKies. Tlie K, 


kii..w„ .Irv st.„e. At. I!,,., Marcia- l>,.ri.. is |a 
•■■r 50.^ Kdis.iii hiiii|is. 'I'la-, .M.M. Mmiciciul 
lifve tried wid, ,li,,s;„.sfac,i.,., the ar, 1,^1,1-, an,I lure 
them ti. irv the haliwan. 

TORY BOUGHT. Th,. tn ini.r.. .r , 


M.C I...C1 Kvcrc. 8<. 

inotulis with .-i plant of almnt tco li^-his, as was slated in the FiftI 
Unllclin. The light has given snch'salisfacti„„ ilia'l .Mr. "Isve'rett Lk 
even an order for a.nneh larger plant, two I. dvnatnos and ^;o 
lanips. together with a few ja-candle latnps for ont-sloor ilht.nina- 
be installed in Kvere.fs Hotel, Vesev and liarclay .Streets 
nt of the Hotel Kverett has been lighted with two street 
imposed of clusters of Kdi.son . f,.candle latnps but the out- 
«|.s for Kveretfs Hotel, to he place,I in globes attached to 

.are to he of., .-can,lie p.iwer, ainl 

. arranged as to light the shlewalk in front of the hotel, 
r lainiis, ih-candle power, will he disirihnied in the halls, 

... isirlois, and elsewhere on the first lloor of the 

The fr. 

The intc 

A contr.,.;t has just been to„ciu.le,l to light the Restniraiii Hejeune 
a- St. I-etersbnrgh with a plant consisting of , X dynattios an,l tSo 

EDISON FACTORY IN FRANCE. Owing to the fact that 
under the l••rcIlLll patent laws. Ianii>s, ,lynanios. meters, and all 
other apparatus constituting the lulison system ainl covered by 
Kihsons I-rench |iatenis, must be inannficlnied in France, there has 
necessarily been some delay in starting onr light m that country, 
pending the equipment and starting of factories. The European 
Company‘.s factory at Ivry-stir-Seine, liowever. is now fmislied. and 
Mr. Ilatclichir has coinmeneed to turn out dvn.imos l.amps etc. 
Coiisc<iucntly the French Company has now hegnn to install platits 
in I’ari.s, as well as elsewhere in France. The followitig acconiit of 
the fitetory is taken frcmi tlie I.ondciti Kltclriii,iii, Angnst lath : 

fourteenth bulletin. 

The Edison idectric Light Company 

.111(1 llic district lightfil i] 

out stoppitiK. The swtcineiit was made in tl.e liLst linlletin that up 
to that tittle 11.1 serious olistaele had licen met with, Tlie sirne is 
true ntjw. Itideed. we can go further and ,s;iv, that as regirds .Mr. 
Tdisotis |iart of the work, namely, the elecirie apparatus and every 
thingappertaitiiug thereto, the result has e.xeeeded our anticipations, 
the only delay that we have had havtng been caused by purely 
mechanical matters, such as the regulation of engines, and other 
usual engiiieeriiig annoyances iitcidenutl to sorting for the first time 
a number of high-speed engines. We are at present lighlitig 85 
houses, wired for 2,313 lamps, and as soon as certain adjustments 
now being made in the steam engines are completed, we shall coti- 
nect other houses as fast as possible. 

plant of i8o A lamps is installed in the Su Uzare Station, at Tan 
of the Western Railway of France, and has heen in successful oper 
tion for the past three weeks, giving great satisfaction to tl 
Railw.ay Company and to the public. The lights are distributed 
the waiting rooms and in one of the princi|.al passtiges. This e.sper 
mental installation is made by the Western Railway Company with a 
view to the introduction of the light in all the stations of the Co.n- 

COMPANY AT OHIOAOO. The fillnwtn,, „„t.... r... ., 

the stockholders in the Chicago Company. Siockiinidcrs 
our Companies can doubtless obtain copies by writing t< 
or the Western company, N'os. 5t and 53 Wab’tsl, Uu.ue 

lOBKAINE miLI, PLANT. In tliis plant the arc I 
not be displaced, but will continue to be used in the old 11 
our light will be used in the new, so as to enable the prop 
determine which is the better adapted for tlieir business. 

ED. \ plant of 1 Z dynamo with 50 .\ and j.S li lamps is 
tailed ill tlie |i;i|)er factory of Messrs. Hardon et I'ils. 

ST. CHAMAS, FRANCE. Tlte Government powder nia 
i now lighted with an Edison plant, riiis installation I 
ecial features. The wires are all outside the building arc in recesses in the walls, with a pane of glass 
tween the lamp and the interior. The ullicials l.ave e 
lemselves as being well satislied. and it is probable an 
ant will also be installed in the arsentd. 

AN ORGAN FACTORY PLANT. Tlte llridgeiiort Orgti 
111, Dridgeport. Conn., have ortlered a plant ciinsisting ol 
naino ami 500 H lamps for use in their factory 

BUENOS AYRES. ..\n Edison jihint was started .\ugu, 
the Confiteria del Gas, ami htis been running ever since w 
s. The light is used four hours every night, and tire Inca 
|>crs arc enthusiastic in praise of it. 



o., Albiiiij’, N. wlio liiivi; btcii using a jilnm of i 
licir Iirintiiig house, as incniioned in the Tenth Hullo 
IS an order for a l{ d.vnanio, winch will increase tin 

lo and 2oe A and II lamps is being installed in the I- 
tior, jersey t iiy; N, |. -phis elevator is owned by Me: 

Annan and has a ca|)tcity of 1.500.000 bushels. 


the theatre in cunnectitm with the Munich Kxpositic 
varded to the Kdison Com|>any, as stated in the 
he plant has been installeil and the light has no.v bei 
teks, illuminating the theatre daily. This c.'tliibit 
proval as being exceptionally successful in theatre lig 



The Edison Electric Light Company 

6s FH-TII AVKNfi:, m:\v vokk. 

December zoih, 1882. 


matter of K^tcr or leas interest connectcii with eleetric li^.-hlinl*. Ayenla arx: 

it may be develoi»ai by tlicir cxpcrieiiLc in 'iiiilaUinu 1 


First District, .New Vork Cilv 
IkMuji. Another Sn«.tr keimcrv to K 

Totiiiionul from the Oliio State Ji.iinial I'laiit. 

Augusta. Another l iant IiuTeaseil. 

l’a|H:r llaii(*ifi^' !act<irv I.ii:hle<l. 

North Carolina. Cotton Mill Plant. 

Holyoke. Albion l'ai»cr Mill to U- I-L'lilwl 

North Ailanis. Arnold Print Works. 

Akron, Ohio. Slraw.It.uid Factory Plant... 

IHjou 'Hieatre la^hted. Ikjstoji. 

Munich 'nieativ Plant. 

Theatre Plant at itninn. -No (ias Lh-xI - - 
New Vork City. Sjmcc .Mill to U- 

v\ Miisissipin Sicaiiier lai;hkil. 

New Vork City. Aincncan Lxpress PLant. 
Fans, France, hive more luibon Plants- 

Mass Boston, 

ED. An order lias been rctciveil from Col. K. K. River..,, for a 
plant consi,slins of one I, dymamo and 150 A lamps, to partiallv 
light the St. Chailes Hotel. New Orleans, I.a. 

PLANT, COLUMBUS. •I'he following testimonial ha.s been re- 
ccived from the Ohio Slalt Journo!, Coinmbns, Ohio, ligliie.! by an 
Rdison isolated plant: 

"In rcsiionw to your int|uiry I In,; to w ' 
system of electric liglil. ami lii ' 

ristures.vItliou},,h w< 

- wliolc thing. Some rcason.iniy acci 
cost Of piwluction ilevelop the fact tliat it i, g.,s st s, ,i,ou. 

lanil. Our employees prefer it vcri mm|, g 

received an oriler from the Sibley Manufacturing Company, Augusta, 
Georgia, for an L dynamo, thus incretising their lamp capacity to 
650 lampti. 

PAPER hanging’ PAOTORY LIGHTED. A plant of one V. 
dynamo and 60 A lamps has been orilered by Me.ssrs. \\’hiting k 
Campbell, niatnifacturers ofiaper hangings. New Vork City, 

received an order fora |)lant consisting of one L dynamo and too 
A lamps for the cotton mill of Mr. R. V. McAilen, at Lowell, North 

500 feel of No. E<lisc 
our First District in New 
under the stage to a ixiin 
arch, where all the regtil.s 
lights tan be controlled 1: 
gulators for ratting and Ic 
trolling those in the audit 
third controlling the light 
a single board, arc all iIk 
control all the lights on 
other switches for the lig 

In the lighting of the i 
There arc no footlights wl 
placed in three rows on t 
ning aroumi the back of ti 
similar tin reflcctots, straii 
140 A lamps. These latti 
ropes and pullers as may 
toriuiii, hanging from the 
dclier of Moorish tiesign, 
other points from the dom 
.sign, each with 18 lamp 
are side lights with 44 lam 
sciircases are lighted by th 
the foyer by one chandeliei 
arc four chandeliers of 4 la 
anti at the front of the thea 
Tlie total number of lamp: 

This installation, one of 
was finished in two svccks 

le pliuiLs in the dry goods store, .Au lion Alarchc, ami in tin 
aure Kailway .‘nation, lierclofore incniioned in the Ihillctin, 
dlmving plants have been installed and are now running at I 

(1). A plant of one Z dynamo with 6o A and lo II lamps ir 
elegraph rooms of the .Minister of Posts and Telegraphs. 

(a). In the glass-works of .M. Pochei. a plant of one E dyn 
id 17 A lamps. 

(3). A plant of one Z dynamo and 60 A lamps in the Gr 
Lagasins dn Eouvre. 

(a). A plant of one Z dynamo and 60 A lainjis in the Banqu 
mnee, useii for lighting the presses on which the bank note! 

(5). In the establisinncnt of .Messrs. Lodde Fils, dyers of feal 
id manufacturers of feather dusters, a plant of one Z dynamo 
) A and jo U lamps. 

ingston Cotton Mills of Messrs. Wright, Turner & Sons, at Pern 
n, near .Manchester, England,' employing 700 hands, arc t 
jilting by the Ellison system. There arc at present 500 light 
le, supplied by two K dynamos, but it is intended to increase 
,|Kicity of the plant to 1,000 lights. 

AMORT MILL PLANT. This installation, mentioned in the 

IJuriiitMhc progress of the Instituic I-airat Bosion. inctnioiic.l 
Kourlccn.l, Hulletin, the Ilelioiype Printing Cotnpany took ttv. 
togR.,,lnc views by the light of tlte Ktlison lamps. One of tlies. 
tograi.hs of the Western Art Gallery, Institute Fair Ilui 
an<l the other of U- Pages picture of Joan of Arc, on cxlii 
at tile Fair, llotli photographs were taken at iiihinight, O 
16th and 17th, the exposure being one hour and tweiitv minit 
each e-ase. The .Manager of the Ilehtoy|Hr Cotnpany is liiglilv p 
with Ins success in obuiiniiig good iihotogmplis by the iiicand 
light. He states that he has always Cviled when attempting to 
inctiires by the arc light, as its causes cfTects situ 
those when the subject tnove-s. Prints of the above photO( 
hate been sent to tis by the Hcliotypc Comixinv, and are hi 
our office. 

Z dynamo with 40 A and 40 li lamjis has be-en installed in il 
taWishinctit of Messrs. F. Dandicolle Fils, large provision 

have installed a plant consisting of one Z dynamo and 60 A 
for Messrs. Ale.x. Laroche, Jouberi ek .Moiieau, Angouleme. 

now running in the factory of JMessrs. Psuil Schmidt ek Fibs, 
ufaclurcrs of hosiery at Vosges, France, a plant of one Z dynam 
one F. dynamo and 150 B lamps. This plant is worked very 
factorily by a turbine wheel. 

George 11 . .Sheldon, Fire Marslml of the city of New York, fo 
jxar ending December jisl, iSSo, shows that in this city from J 
|S6S, to January, iSSi, there were 345 fires ca.isc .1 by igniti, 
escaping gas, 31 fires can.sed l.y e.<plosioiis of gas, 1.2S7 fires 
die upsetting of kerosene oil lamps, i from the upsetting of a 1 
-•d candle, and 907 fires caused l.y winihiw curtains, goods in 5 
rr show windows, cbristm.a5.trees clothing, tlraiwo-. netting. ,e 
voodwork. Ac., taking fire from gas Jet.s. candles and lainisi; 
ottil nuinhcr of fires nggrcjiaiing 2,571, 

lie Z ilynamo and fiu .\ lamps has been ordered, for use at 
nited .Slates Military Academy, West Point 

. light the dry goods store of Messrs. U. H. While A Ca. at Host 




: fnilowin)» extnct from llie Ihltimorc Sun, November 2^1 
ics to one ol our phiiis j’nst started in the piano facton* of Messrx 

l^^Mi-s.—Scvcral ttqartmcnu of the Mcjun. Win. 
KnaU \ Cii. s |iMnu ninnufactriry, Kutaw otul West streets "ere %htcil last 

iilvjht ..,J. L.iso.i Ujups. Thefc are 150 lamps hi all, alwut 

125 < r ...MSM «n •■■o>.«bie fur u distance of twcK’c feet hi atiy flhecthm. here, 
lofurc inu uvp.»ru«ieius have ocvn clowl early, as t»as was ii.>t Msed for Icar a 
li«hlc.I iii.uen miHiii [XMhiowii iiy accident where it would do damai;e, hut 

heir etnpmycm, ns many of them work by the piece. As is wril known, 'I iir 

Hieii fullnwwl Mr. Jas. A. fJary’s mill at Wysvillc; then Win. Knal'wV Coli 
mil now .nmnitements are l)chi« nude tointrwluee it into the Mt. Vernon 
Company's mills at WoodliciTy.” 

le fnllnwinjj testimonial lias been received relating lo the plant in- 
llcd at r^mni, meniionci] in the last Hiilletin: 



ED. Ihc l,K.-al i;.lison ;.t .'••nmhgo, l.c-gan N'.,ven.l,c, 

■til.., .0, l,g|„ ,o ,„l«cril,cT.s. The sun ^^us made on th.n 
. w„l. an c-.,uivalen, of ,50 A l.-nni^ which were incrcase.1 wi.hin 
the ne.xt few d.iys 10 ico, e.xclu.Mve of the lamps in the station The 
c..rrent is at ,.resent .listril.nte.l over two main con.Inctors one (ico 
feet lengti., tl.e grj feet. The ligltts are .listril.i.t«l among 
twelve <lry goods stores, five large commercial, a large c^fi 
atul billiard room, atnl several othc- shop.s. .Mr. .etewatt writes that 


li.C-bts are place.l. Me states that all tire sub.scrill''hgin .a're 
.•,l, that he is nnalrle to snpply fi,xt„res as rapi.llv as consumers 
require them, ami that the hwal press is enthusi.xstic in praise of the 
e...erpr,se. The local gas company has supplante.l the old gas 
burners with new ones with an eularg,-.! capacitv. free of charge 
lilt tile public .suiitiinent is largely with the Kdison light. 

DFORD. II ( 11 ,,1 Mr Ml lira relating 

to the large l-alison isolated plant now in use in the Wainsiitta 
mills, Ls copied fnnn the ami hon ami Jioshn Journai of 

Cmtmfnc *' 

Wamsutia .Mites. 

.Vew IlF.uromi, .Mass.. .Vov 10 iss- 
Editor Ccltun. Wool and Iron ; ' ' 

The Kdison system of electric lighting was Inttmluccd i I .Vo 

three K dynamo, so called, each of ihe eapacilV.f'^o T lig'hro'f'it 
candle power each, mahing a total of ,50 llghis. The liXs " 
arranged that one will light four looms, giving tn e.,. I ,m , 

LOTUS. .\ plant of 17S A lamps is being insallcd in llie 
^\orl;s of N. K. Fairbanks A Co., Sl Louis, Mo. This p 
elsewhere mcnlioneil in this Hullelin, in connection with the 
plmrts mslalletl by the Western K.lison Light Co.n|«iny. It i 
side of their territory, but s|iecial arr.tngemcnts were made wit 
company for the installation. 

DRT goods store plant. DETROIT. A plant cc 
'■■K of 175 .V lamps is being installetl in tl.e dry goods store of M 
Metcalf llrolhers A Co., Detroit, Michigan. This plant is elset 

mentioned in this IJullctin, in connection with the list of plan 

sullied by the Western Kdison Light Company. It is outside of 
temtory but .special arrangements were made with that Compar 

me insinllfitinn 

No. 17. 

■ APRIL 6. 1883. 


The Kclison Electric Light Company, 

fis Firm AVKNUK, m:w yokk. 

April 6th, 18S3. 

0 communicate to the PresiJent whatever pnictical points 


StutiKart, Ct-njwiiy. IXiwU and Post Ofilcc Lighted. 

Praise for the VxWsou Light . 

New York Commercml Advertiser to l*c IJghtcd. 

Ilaltimore. Johns I lopkins 1 lospital to lx: Wired. 

Waterloo Station, l.ondon. I'lant Increased..... 

Installations made by the Western Edison Light Company... 

Kays of Incamlcscent and Arc Lights Compaml. 

New York City. Dakota Apartment Diidding. 

Madrid, Spain. Factory Lighted. 

Stc.'imship Ughtiiig. Safety of the Edison System IX-nnmstr 
New York. .Mr. Yillard's Residence . 

Progress In Chile . 

New York TVoM Lighted. 

Straslxiurg. lX’]x>t Uglitcd. 

Lake George, New York. I lotel to l>e Lighted. 

Vienna. Imjwrial Palace Partially Lighted. 

Philadelphia. Sugar ftcfinco' Plant. 

Another Newspaper Lighted. Boston. 

Culxi. Isolated Plants. 

PhOadclphia, l*a. Testimonial. 


CCS and composing rooms of tliii 
1 the Pearl Street Suition as soon a 
'here will he 9 lamps in the olTice 


The following translation of.1 parai'rapli in tlie I’.iris GWwl, Feb¬ 
ruary Stli, is of interest: 

The Paris Figaro, February 8lli, eontained a nonce of which ih( 
following is a translation : 

“At the Court Ilall, last Tiicsrlay, the Omml H.all tv.ui lighted by 500 
Edison lam|.s. The rellection of the eleetric lii-ht m the brilli.ant cryslaU pro. 

installing a plant consisting of one Z and two I. dynamos, 360 A 
lamps, in the sugar refineiy of Messrs, Harrison, Havemeyer it Co., 

installed a pliint of 173 A lights in the new building of the Boston 
Daily Adwrtiur, 

I-ENNI, pa. testimonial. We have received >l.e followi, 

atimonml relatiiii,- l'> tlie plant installeil for the Parkmotint M 
ompanv ; 

"I.KNsr, I’A., March 3.!, 1SS3. 
hbisos COMI'ANV H)K Iaji.aTKI) IJCItTINO. 

Ueht. It.ive h.1,1 f,ve lanips brokeii, Wc .ire ver,- much plcascl with the 

IK I'AKK.MOU.MT .\ 1 II.I. CO., 

STEAMER “PlioBIM- PLANT. The plant on the ■■ Pil 
m," belonf-ing to the Old Colony Steamboat Company mentionct 
thefo.rteentl Unlletn , fn he 1 It consists of’9to I,amps 
c L, anti two K dynamos, (with a capacity of , ..356 candle power) 
two Armmgton A Sims engines (one by to H engine, ant 
: Ity 12 C engine), belted directly to the dynamos. Steam I 

hisbed by a special boiler of 95 H. P. cajacitv, with Sc 
mds pressure ; steam connections are also made with the donkev 
lor, and with the ships tnain boiler, for emergencies. The dyna- 
S can be used either together or separately, and are regulated by 

COMPLIMENTED, 'riic following compliment to Mr. Batchelor 
appeareil in La Lumirrc EUcIrijut, in an article written hy JI. 'I'li. 
Du .Moncel; 

resiHtct : it is wlicn: tlic electrical apparatus is manufac- 

Au^just I2i!i, itiSi, .1 lonji iiniclc lo the 

... -vsw., ..I *,.y, .nn<l wc will now simply .mid th-it ihc factory 

.. . 200 workmen, and the ixirtion of the factor)- which is 

ilcvoled to the manufacture of Limps, is turning out .|C)o lamps .1 day, to siy 
nothing ofdynamos.ind other apparatus. This c.stablishmcnt has U-en started 
in less thana year, and rcllecls the hiyhesl credit on its manager, Mr. Ilatchelor.” 

ral station has been estaltlislied by tlie Maticlie.sler ami District 
•Mison Electric Liglit Company, Litnitetl, in .Mouttt Street, iti 
liat city, from wliich it is proposed to .sttpply tlie public Ittiildings 
tc., in tlie neighborltood, xs soon as permission to cross streets witli 
omlttctors is obtained from tlie .Mancliester corporation. ’I'liere are 

low installed in tliis station four K dynamos liavitig a capacity of 
wo httndred ami fifty lights each; also a 7 . dynamo. It is intended, 
owever, to e.xtend the capacity of this station to 10,000 lights. The 
lotive power is sttpplied by two high atiil low-pressure engines, 
specially designed by Messrs. Mather A I’latt. of the Salford Iron 



The Edison Electric Light Company, 


May 31st. 1883. 

nl way of aIls^^•ering the inquiries 
requests, scut also to all stock- 
of the Company and of other 

particularly requested to communicate to the President whatever pracUcal points 
of general interest may be dcvelopetl by their cx|)criaicc in installing or oper- 
ating our lights.) 


Testimonial from R. II. White it Cu., Boston. 

Stock Kxthange, New York City... . 

Bergmann »S: Co's New Catalogue. 

Storage Rattcries. An Expert’s Adverse Opinion. 

' • The Post'' on Storage Batteries.... 

Sunbury, Pa. A Central Station. 

Shamokin, Pn. A Central Sutioii... 
Measuring Electric Light and Gas.... 


cturc before tlie Chemical Society of Columbia College, Pro 
irkcr, of the University of Pennsylvania, gave the following concis 
ifinilions of the names of electrical units: 

bulomb Quantity iq“‘ or One tenth. 

oil ! Klcctromoiive horcc| lo* “ One hundred million. 

Him i Kesistance I lo* “ One thousand million, 

mperc Current lO"* '* One tenth, 

arad | Capacity 1 io“* “ One thousand millionth, 

fait (ampere volt) Rale of Work lo^ (or ten million) ergs, 
[orse-power “ “ 746 x 10’ (or 7460 million) ergs, 

)ulc Meat o. 238 walcr-gram*dcgrce cent. 

he following testimonial ha.s been received from Mr. E. H. Hastings, 
encral Manager, Bijou Theatre, Boston : 

“Bijou Thp.atrk, Boston, May 18, 1883. 

Spencer Borden, Esq., 

Manager New Ivngland Department, 

to be warmly congratulated on 

By Kow. Jt. Hastings.” 

liave received an order for a plant of one K dynamo and 250 A 
lamp!., to lie installed in the Miller Industrial .Seliool, Ilatesville, Va. 

eeived tlic following testimonial from tlic .\morv Manuliicturing 
Company, Manchester, N, II., regarding the Kdison installed 

COMPANY. Since llic Hiillctin the following plants have been 
sold hv the Western Edison Company : 

(t). A plant ol one K dynamo an<l 2S1 lamps to light the resi¬ 
dence of Mr. M. D. Wells, at Chicago, Ill. 

(2). A plant of otie K dynamo and 250 lights to be used in the 
First National Bank and Safe Deposit Vaults, where they will dis¬ 
place the Weston arc lights and the Maxint incandescent lights 
which have heretofore been in use and now abandoned. 


Till' pliim fis bmps insmllal by the Mdisnn Company of London 
on iliB “Rio Pardo, ’ a slcani.ship built for lliu lirazilian coasting 
trade, has bern .successfully put in operation. -I-bc vessel recently 
made a trial trip, lighted by its plant of Isdison lamps in a most satis- 

bst of 33.1 K.lison isolated plants, aggregating 65, t45 incandescent 

... '» this coutitry and in other parts of the 

orld. This list e.scbnles all central .station planLs, and embraces 
solated planes, where the party using the light furnishes his own 
lamo. It is with jjo little priile thiit 
ction with tlic publiciiliMn of this list, 
i lire or an injury in connecti..n with 

there has 
installaiinn rejecteil, 


No. 19. 

AUG. 1&. 1883. 


The Edison Electric Light Company 

65 riiTM avi:nui:, ni:\v Y(jkk. 

August I5lh, 1883. 

<)f tiutaiit a^cntsi .irc now, in rcsiwnsc Ui numerous rwiuestj, sent aUo lo all stock, 
holders, to give them mfonnation of the progress of the Comjuny and of other 
matters of greater or less interest connccteil with electric lighting. Agents are 
particularly re(|ue»tcii to communicate to the I’reshlent whatever practical points 
of general interest may Iw dcvelo|)cil by their cx|)crience in installing or o|)cr. 
ating our lights.) 


First District, New York City. 

Mr. Jay Gould's Yacht IJghlctl. 

New York. Kerry Ik>.it to l»e Lighted. 

Doston. riant for Chickcriiig A .Sons. 

New IJetlfonl, Mass. Plant for Coni Works. 

A Newspaper riant Increasetl. Ikwton. 

IJoston. Testimonial from Slate I louse. 

The I'xlison IJght at the Railway Lx]x>siUon. Chicago_ 

Cornwall, I'a. Testimonial. 

rittsburg, I’a. A New5pa|>cr riant. 

Ikncficial ElTcct on the Eyesight of the Incandescent Ijghl 

Cam))cchc, Mexico. Testimonial. 

Ijikc George, N. Y. Hotel Liglitcd . 

Davenport Gaietfe Again. 'Icstimonial. 

Long Ufn of Edison Lamps. 

Testimonial from Empire Hrewery, Milwaukee. 

Thuru aru also throe 32 candle-power lamps enclosed in a Frcsnal 
globe, which servos for the mast-head lantern. This, together with 
the red and green sailing lamps on the port and starboard sides, each 
of which is lighted by two 32-candlc lamps, are entirely new features 
in steam-ship lighting. 

received an order for a plant of one Z dynamo and 60 A lamps, to 
light the ferry-boat “Fanwood belonging to the Central Railroad 
Company of New Jersey. 


show rooms and music hall ofMe.s.srs. Chickering A Sons, Boston, 

arc installing a jilant of one L dynamo and 160 A lamps in the 
works of the New Bedford Cordage Company, New Bedford, Mass. 

R. M. Pulsifer & Co., (The Bo:lon HtraU). have enlarged their plant 
by the addition of one H dynamo, 350 lamps, thus making the total 
capacity of their plant 50D .A lamps. This increase was ordered 
after trial of an infringing lamp which had proved to be unsatisfactoiy. 

print below letters received from the Speaker of the House of 
Representatives, and the Chief Engineer of the -State House. Boston, 
m regard to the Edison plant installed there: 

the Sn^MiMiiru Hniol, Green Isliiinl, Like George, which was i 
tinned in tiie last Ilnilelin, has been insiaiieii and is now in o| 

COMPANY. Since tile iast liniietin. die foliowing piants iiave 
been soid iiy tiie Western Kdisun Ligiit Company: 

(t). A piant of two K dynamosand 640 A ianips, to iight the rc- 
taii drv goods estaiiii.sinncnt of Messrs. Mandci Urotiiers, Chicago, liis. 

(2).’ A plant of one Z dynamo and 60 A lamps, for the flour 
mills of Messrs, li. Sanderson & Co.. Milwaukee, \'K 

rccciveil liy die Kn(;lisli Kdisoii Company lo light the steamer 
‘■Clan .McIntosh" of the Clan Line, with one L tlytiamo anil 150 
A lamps. This is a sister ship to the “Clan MacArthur" which 

s lately filled u 

liKht, The o 

io pleased 

with the success of the light on the latter vessel that they gave die 
order lo light the “Clan McIntosh" with Kdisoii lights without 
inviting tenders from any other electrical companies. 

dynamo and 150 A lamps is heing installed oil the United .Si 
.Steamship “Trenton," now at the llrooklyn Navy Yard. 

iga plant of one dynamo and too A lamps on the Steamer “Kinaii, " 
un helween San Krancisco and the .Sitidwich Islands, 
helongs i.) the Oceanic Sieamship Company, and is 
heing hiiili at I’hiladelphia hy Messrs. W. Cramp i Sons. 


received ati order from the Oregon Railway A Navigation Company 
to insull a plant of one L dynamo and 300 It lamps on their .steamer 
“Alaskian.” ' 

are installing in the Hour mill of Messrs. Thornton A Chrater, 
Buffalo, a plant of one Z dynamo and fio A lamps. 

ATLANTA, GA. COTTON MILL PLANT. Wo arc installing 
a plant of one M dynamo and 350 A lamps in the K.xposition Colton 
Mill, Atlanta, Georgia. 



a plain of one Z dynamo and Co .\ lamps in die newspaper and 
printinf,' offices of the Press Company, publishers of the Djih Prtss 
ttni/ Knickerbocktr. 

of one I. dvnamo and 150 A lamps liecn installed in the grain 
elevator of the New York, Like Krie A- Western Hallway Gniipany 
at Ihtfralo, The dynamo isdriven hy an .Sy,: x 10 hawreiiceengine. 
The disposition .if the lamps is as foll.iws : 

heen received hv the laindon Kdison Cuinpaiiy fora plant ol one L 
dynamo and 150 A lamps to light the new steamer Adehii.le,' 
helongitig to the .Attstraliaii .Steamship Company. 

The Lockwooil Cotnpany hate heen using a lx dynamo and .’30 A 


healrc, now i»cing conslructcd at IVagiiL’, tlie c.-ipilal of Ik 
ill lie liKlitcd liy the Edison system. 'I’lie plant will consist 
and seven K dynamos anil al»unt a.'.oo A iantps. 

MUNICH. BREWERY LIGHTED. An installation o( 
id 40 H lamps with a 7 . ilynamu h;u» been in operation 
onlhs in the brewery Uc la Croix d'or, iMunich. The plai 
;c every day from 6 o'clock in the cveninj' till 2 o’clock 

am of one 7 , dynamo and 60 A lamps lias been installed in a 
:iory at Coswijf, Germany. 



e mentioned in the Ia.Ht Bulletin that on the occa 
ronation at Moscow, the Kremhn was illunii 
lison lamps. We now give the following cxti 
tersburg Ihrahi, referring to this lighting; 

“The illumination that t«»ok place on the day of the c 
:ntire population of Moscow into the street^, particularly i 
Kremlin. KvcryUxly wanteil to see the illuminaiion whicl 
ind talked alwut for weeks and which should surpass any 

ihicc towers of Iwaii Wclbkij shed .1 fairy lustre. The ir: 
and its alwolutc steadiness, which cannot U* ohiaincd hy 
li^Jhting, all contributed to remind us of those fair)- palac 
i)f which wc still retain a vague remembrance.”’ 

The journal Acw Ureme says; 

“ Iwati the fJreat, fully illuininatcd with Ivlison l.itnp- 

ven an order for an Kdison plant consisliiii,' o: 
ilh 171 .\ and 250 li lamps, to llKht the .Xrse 


IC.S 'riicaler, 'Berlin, is to be lighted In' Kdison lam 
ilween the directors of the tlicalrc and the Gen 
my has been .signed. 


tobacco factory of Mr. J. P. .Schneider, at Ncuwicd, has been liKbled 
liy a iilaiii of 28 1) lamps almost a year, ami the li^bt has (ji'cn such 
satisfaction tbai tbe plant is to be increased, 

at Caen, wbicb was opened on tbe 5tb of June, is entirely li^-bted 
by tbe Edison light. Tiiere are upwards of 300 lamps placol in the 
various g-alleries and through the walks 

COGNAC, FRANCE. CAFe”^ LIGHTED. ..\ plant of one K 
dynamo 17 .V lamps, been installed in tbe CaC-,lu Cbalet, at 
Cognac. 1 bis plant has been in operation since Mav 2otb, 

of one Z dynamo and f.o .\ lamps I,as been placed in tbe distillery 
of Mr. Gravelles, Cognac, France. 


ED. A plant of one Z dynamo and 60 .\ lamps lias been installed 
at Annonay, for Mr. Jomaron, to ligbl bis leather factory ami 

of 17 A lamps with an K dynamo ha.s been installed in'the Hotel-dc- 
I'r.tnce, l:.aux-lJonne.s, Mr. 'I averne, the proprietor of the hotel, 
desired a 60-light plant, but bad not sttnident jiower at his disposal 
to drive that size of dynamo. The light gives great satisfaction, 
particularly in the dining room, whore the absence of heat is 
particularly gratifvin,g. 


msiallation of one li dynamo, r.s IJ and 3 A lamps, has been in 
operation in tbe paper factory of .Messrs, de latierimand i Co., at 
Voiron, since .\pril anti bas given great satisfaction. 

been iiislalled in tbe mill of .Messrs. .Vniiidce Proiivost Sc Co., manu¬ 
facturers of woolen goods, a plant of one I. dynamo and 150 A 

tion of one K dynamo, with 300 A and U lamps, bas been made in 
the bunded wareboiise on tbe tjuay Saint-Bcrnard, Paris. Not only 
is light furnished, but electric power from the plant is used ihrough- 


factory of Mr. H. O. Neuhaus at Crefeld. Tbe light enables tlie 
workmen to mix colors as well at night as by daylight. 


ED. Messrs. D.irbUy A licranger, who had an installation of one Z 
dynamo, 60 A lamps', placed in their paper f.tclory last February, 
have ordered a second installation of another Z dynamo and 60 A 

Blanchet Sc KI6bor, manufacturers of photographic paper, have an 
F.dison plant of one Z dynamo, 29 A and 36 B lamps, in.stalled in 
their factory at Rives. 

3 ° 

onu li dyii.imo and 17 A lamps has been installcil in the foundry ot 
jM. Lumoinn, Ivry-Sur-Seine. for lighting his oiliccs. 

one L dynamo has been instalietl in the oil manufactory of .Messrs. 
Maiirel A I’rom anil .Maurcl lirothers .At present only 8S .A lamps 
are placed in position, but the whole number, 150, will be used 
when some additions to the factory are completed. 


The premises of Messrs. Galii, re.suurant. Strand, London, are 
betng wtred by the Kdison Cottipatty therefor 300 latttps. TTiese 
lamps will be supplied with current from a cetitrai station which it 
1, projto.sed to establish to light that district. 

The Government Printittg Onices at Wellington, New Zeaiatid, are 
now lighted by att Ldisott plattt of one '/. dynamo anti 40 A lamps. 

MELBODBNE, ADSTBALIA. ’ITie Victoria House of As- 
setnbly .-.t .Melboitrtie, is ligitted with at. Edison piant, consisting of 
otte Z dynamo and 40 A lamp.s. 

LIOHTED. A |)iant ot two dytiatnos attd 350 A latnps has Iteen 
instalietl in tite Queensland I'.irliametitary littilditigs, attd tite Oiteetts- 
latid Govertiment I’rintitig Oiliccs, at Drisbanc, Qttccttslatid. 

TTto foliowing letter may be of iitterost tis eonlaining a rccoril of the 
principal published tests of the lidison dynttmo anil latnps: 


The Edison Electric Light Company 


October 31st, 1883. 

(These bullethis, oriyirully issued as a convauent way of answering the intiuiries 
of Ubuzit agents, arc now, in rvs]>onsc to numerous requests, sent also to all stock, 
holders, to give them uiforiiutioii of the progrcM of llie Comply and of other 

particularly requested to communicate to the President whatever practical points 
of general interest may be ilcvciopcd by their experience in installing or oper¬ 
ating uur lighU.) 


First District. New York City. 

Huston. Foreign luhibition Ughlcil. 

Philadelphia, t^orge Dry (tuotls Store Ma 
First rrizes for the lulison Fjthibil at Cmtii 

ContracU Closctl by the Wcstci 

Against Storage Itatteries. 

Buenos Ayres. Testimonial.., 

tefngcralmg \\ 

Philadelphia. Steel Works Ijghlcti. 

English Steamship Plant. 

The Louisville Fitposition Plant. 

England. Twcnty.onc Sltaimsliip Plants. 

Cincinnati. Plant for Color Printers. 

New York City. Illock of Ilouas to Ik Wlml.. 

French company a hcarjf rcuincr a« iu electrician, 'but on Inveatigatlon be 
became convincetl that Ihcto wa» nnlliinK in it. and returneil the retainer to 
the French company.' " 

Eviilcntl)' the pritcr oftlic above lia.s read .Mr. Ktlisoti’s interview 
on .storage batteries in the Sixicentli liolleon. 

a plan', of one Z dynamo and 60 A lamps in tlic ir 
of Messrs. Schwarta A Urother, Buenos .Vyres. We h: 
received the following testimonial relating to this plant: 

insballation of 60 lamps in the Banque tie France, I’aris, mentioned 
in the 15th Bulletin, has been increased to J50 lighbs, which will 
light the entire printing department of the bank. 

BIJOB THEATBE, BOSTON. An amusing adaptation of the 
Edison light has been made at this theatre in the l.istact of ‘' Virginia." 
The two red horns on the devil contain i6-candlc lamps, which, 
being connected to the Edison system in the theatre, are lighted 
when the devil disappears upward, producing a striking effect. The 
entire theatre is also lighted by Kdi.son lamps. 

them a bcautjr Kitcdy their ovrnj beautiful ai they are." 

Pott, August lyilt: 

“ Tlu! eyes gf the entire icientiric wnrid hare been directed to the Ediion 
electric display at the Imposition, watching with great interest the insullalion 
of the largest plant the world hat ever seen. 'I'he trial has been made, and 
thus far success has marlsed the result. It is by far the most important and 
interesting feature of the Eapusition." 

jthcrs’ siKCUicuIar lanloinimc, 
lamo, 55 volts cicctro-molivc fi 
500 eight eaiitllc-powcr B lam| 
\t tach iKrformance of "Kxccl 
follows; 1st act, last scene, the 
-ight;" ill act, last scene, tl 
ne, the discovery of the electrii 
; last scene the hallct dancers an 
Kdison hnnp on the enil, and I 
r llys above. At a given signal 
; lighted instantaneously, proi 

, OS used in Messrs, Kiralfy 
icclsior,” consists of one K 
capable of supplying current 

■ the Edison lights are in use 
ric torch held by the character 
rooklyn Bridge; 3d act, ist 
rk in Volta's laboratory. In 
.•idol with wands, each having 
ms of lamps arc lowcrol from 
entire number of lamps, 400, 
g a magical eifect of great 
immense number of lamps at 
severe test on the regulating 

cciveil ail order for a plant consisting of one dynamo and 200 . 
lamiK, to he installed in the woolen mill of the G. H. Gilbert Mane 
factiiring Co., at Ware, Mass. 


We have installed in the machine sho|)s of the Jenks Manufacturinj 
Co., at l*.i\vtucket, R. I,, a plant of one 'P dvnamo and 100 / 

stalled a plant of a 7 . dynamo and (<o A lamps in the machine shop: 
of the John T. Not e Manufacturing Co. at Rulfalo, N. Y. 

received an order for, and are now installing, a plant of one dynamc 
and 50 A lamps in the engine building shops of the Fulton Iron 
Works at Detroit. 

The I’hiladelpliia Xtnn/, October 6th, speaking of tlic Kdison 
isolated plant that lights the building says that “The Edison 

he Mid: ‘The air i> ar»<I (hit is tiue, 

}(the incamicscctil electric lij-ht ii» all part* 
nconUmitutetl by those va}>or* and inpuritics 
produced by cojubustion. An<l the inenn- 
cm enter y our state-rouin, turn a little key in 
rested the place i> filled with a clear, while 

MI. and ymi had to wait for Huht until the 


Xo. 21. 

DEC. 18, 1883. 

twenty-first bulletin. 

riic lulisoii hlcctric I.iylit Companj-, 

other matIctN of 
arc jurjicularly rcRiicMctl to cotmimniratr to 
IKiInt. K.ncul intcrcM may Ik- ,I.-v,I..|h-.I l,i 
<i|K-raliii(; mir li^-hls.) 

c O N T E N T S. 

Mr. Sidney B. I’alncS Paper, 

Mr. S|>cticer Ilordrn’5 DiMusnion «i 
lic|>oM i.f Mr. (Irr.ri;.- II, Mi., „„ 


Mr. KihVm „ii .Siora^c llallrrii-., 
Krport <iti ihr ,.;wan l.anip 

Thcsi: papers on the Itrii^h Storage H.iiiery. and the Swan 
^ainp I'aients, are printed for the infurinatinn of our a;;ents and 
stuckholders. 'J’hey are .so vtdunnnoiis we are uhliyeil to devote 
nn entire Ihilletin to lliein, oinitliny the tisiial record of the 
growth of our 

I lie failure of the IJrush-Swan Conipany to redeem their j)r()ni- 


The lidison Hlectric Ihght Company 


\Vc Imvc rcaMvcl tl.c k-itcr fr..m th.- Mills: 

“ Son iMtHiU'i'-. Msticli sStli. iSS^. 

KoisoN Ki.wrimc l.usnT Co.. 

r,liS1ii!-YiMr favor of !7<>' «scivv.l, avion: J 
our liKhl. li tiav workcil cinircly Mtivfactory to o* ftooi 
«l-wliicl. oaiaboul Ihc lir.1 ol Jam.ary lail-liavioK lia.l 
puttloB 1.. ll.o rlvclric liut.l »c uMol krn~-ov o.l, tor.wpo 
colirvly on tin- vlcclric U«l.l a.ol have oo rrax.i. lo rciui 

«iut thr wurkinv; «>l 

n» Ituiihli'. Ik-foHi 


Reel duplication of the whole or of 
any part of this film is prohibited. 
In lieu of transcripts, however, 
enlarged photocopies of selected 
items contained on these reels 
may be made in order to facilitate 

A Note on the Sources 

The pages which have been 
filmed are the best copies 
available. Every technical 
effort possible has been 
made to ensure legibility. 


Alfred P. Sloan Inundation 
Charles Edison Fund 
Tlie Hyde and Watson Foundation 
Geraldine R. Dodge Foundation 

National Sclenee Ftiundation 
National Endowment for the Humanities 


Alabama Power Company 
Amerada Hess Corporation 

Atlantic Eiectric 

Association of Edison Iliuminating 

Battelle Memorial Institute Foundation 
llie Boston Edison Foundation 
Cabot Corporation Foundation 
Caroilna Power and Liglit Company 
Consolidated Edison Company of 
New York. Inc. 

Consumers Power Company 
Corning Works Foundation 
Duke Power Company 
Exxon Corporation 
Florida Power & Liglit Company 
General Electric Foundation 
Gould Inc. Foundation 
Gulf States Utilities Company 
Idaho Power Company 
International Brotherhood of Electrical 

Iowa Power and Light Company 

Mr. and Mrs. Stanley H. Kata 
Matsushita Electric Industrial Co., Ltd. 
McGraw-Edison Company 
Middle South Sen’ices, Inc. 

Minnc.sota Power 

New Jersey Bell Telephone Company 
New York State Electric & Gas 

North American Philips Corporation 
Philadelphia Electric Company 
Philips International B.V. 

Public Sen’ice Electric and Gas 
RCA Corporation 
Robert Bosch GmbH 
San Diego Gas & Electric 
Sarannah Electric and Power Company 
Schering Plough Foundation 
Texas Utilities Company 
Tran.samcrica Delaval Inc. 
Westingliouse Educational Foundation 
Wisconsin Public Sen-ice 


Kutucrs. TIic State University of 
New Jersey 

Edward J. Dluusteln 
T. Alexander Pond 
Tilden G. Edelstein 
John Gillis 

Nevv Jersey Historical Commission 
Bernard Bush 
Howard L, Green 

National Park Service, Edison 
National Historic Site 
Roy W. Weaver 
Edward J. Pershey 
Smithsonian Institution 
Bernard Finn 
Arthur P. Molella 


James Brittain, Georgia Institute of Technolog)’ 
Alfred D. Chandler, Jr., Harvard University 
Neil Harris, University of Chicago 
Thomas Parke Huglies, University of Pennsylvania 
Arthur Link, Princeton University 
Nathan Rcingold, Smithsonian Institution 
Robert E. Schofield, Iowa State Universit)’ 


William C. Hittinger (chairman), RCA Corporation 
Edward J. Bloustcin, Rutgers, The State University of N.J. 
Cees Bruynes, North American Philips Corporation 
Paul J. Christiansen, Charles Edison Fund 
Philip F. Dietz, Westinghouse Electric Corporation 
Roland W. Schmitt, General Electric Corporation 
Harold W. Sonn, Public Service Electric and Gas Company 
Morris Tanenbaum, AT&T 

CX fidUoru 


( 1879 - 1886 ) 

Thomas E. Jeffrey 

Microfilm Editor and Associate Director 

Paul B. Israel 
Assistant Editor 

Mary Ann Hellrlgel Douglas G. Tarr 

David W. Hutchings Robert A. Rosenberg 

Editorial Associates 

Leonard DeGraaf 
Joseph P. SuUlvan 
Alan Stein 
Karen Kozak 

John Deasey 
Barbara B. Tomblln 
Jacquelyn Miller 
Marla Antonakakls 

Student Assistants 

Reese V. Jenkins 
Director and Editor 

Rutgers, The SUte University of Nevr Jersey 
National Park Service, Edison National Historic Site 
New Jersey Historical Commission 
Smithsonian Institution 

University Publications of America 
Frederick, Maryland 


1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 mm